/*-
 * SPDX-License-Identifier: BSD-2-Clause
 *
 * Copyright (c) 2001 Atsushi Onoe
 * Copyright (c) 2002-2009 Sam Leffler, Errno Consulting
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include <sys/cdefs.h>
/*
 * IEEE 802.11 ioctl support (FreeBSD-specific)
 */

#include "opt_inet.h"
#include "opt_wlan.h"

#include <sys/endian.h>
#include <sys/param.h>
#include <sys/kernel.h>
#include <sys/malloc.h>
#include <sys/socket.h>
#include <sys/sockio.h>
#include <sys/systm.h>
#include <sys/epoch.h>

#include <net/if.h>
#include <net/if_var.h>
#include <net/if_dl.h>
#include <net/if_media.h>
#include <net/if_private.h>
#include <net/ethernet.h>

#ifdef INET
#include <netinet/in.h>
#include <netinet/if_ether.h>
#endif

#include <net80211/ieee80211_var.h>
#include <net80211/ieee80211_ioctl.h>
#include <net80211/ieee80211_regdomain.h>
#include <net80211/ieee80211_input.h>

#define	IS_UP_AUTO(_vap) \
	(IFNET_IS_UP_RUNNING((_vap)->iv_ifp) && \
	 (_vap)->iv_roaming == IEEE80211_ROAMING_AUTO)

static const uint8_t zerobssid[IEEE80211_ADDR_LEN];
static struct ieee80211_channel *findchannel(struct ieee80211com *,
		int ieee, int mode);
static int ieee80211_scanreq(struct ieee80211vap *,
		struct ieee80211_scan_req *);

static int
ieee80211_ioctl_getkey(u_long cmd, struct ieee80211vap *vap,
    struct ieee80211req *ireq)
{
	struct ieee80211com *ic = vap->iv_ic;
	struct ieee80211_node *ni;
	struct ieee80211req_key ik;
	struct ieee80211_key *wk;
	const struct ieee80211_cipher *cip;
	u_int kid;
	int error;

	if (ireq->i_len != sizeof(ik))
		return EINVAL;
	error = copyin(ireq->i_data, &ik, sizeof(ik));
	if (error)
		return error;
	kid = ik.ik_keyix;
	if (kid == IEEE80211_KEYIX_NONE) {
		ni = ieee80211_find_vap_node(&ic->ic_sta, vap, ik.ik_macaddr);
		if (ni == NULL)
			return ENOENT;
		wk = &ni->ni_ucastkey;
	} else {
		if (kid >= IEEE80211_WEP_NKID)
			return EINVAL;
		wk = &vap->iv_nw_keys[kid];
		IEEE80211_ADDR_COPY(&ik.ik_macaddr, vap->iv_bss->ni_macaddr);
		ni = NULL;
	}
	cip = wk->wk_cipher;
	ik.ik_type = cip->ic_cipher;
	ik.ik_keylen = wk->wk_keylen;
	ik.ik_flags = wk->wk_flags & (IEEE80211_KEY_XMIT | IEEE80211_KEY_RECV);
	if (wk->wk_keyix == vap->iv_def_txkey)
		ik.ik_flags |= IEEE80211_KEY_DEFAULT;
	if (ieee80211_priv_check_vap_getkey(cmd, vap, NULL) == 0) {
		/* NB: only root can read key data */
		ik.ik_keyrsc = wk->wk_keyrsc[IEEE80211_NONQOS_TID];
		ik.ik_keytsc = wk->wk_keytsc;
		memcpy(ik.ik_keydata, wk->wk_key, wk->wk_keylen);
		if (cip->ic_cipher == IEEE80211_CIPHER_TKIP) {
			memcpy(ik.ik_keydata+wk->wk_keylen,
				wk->wk_key + IEEE80211_KEYBUF_SIZE,
				IEEE80211_MICBUF_SIZE);
			ik.ik_keylen += IEEE80211_MICBUF_SIZE;
		}
	} else {
		ik.ik_keyrsc = 0;
		ik.ik_keytsc = 0;
		memset(ik.ik_keydata, 0, sizeof(ik.ik_keydata));
	}
	if (ni != NULL)
		ieee80211_free_node(ni);
	return copyout(&ik, ireq->i_data, sizeof(ik));
}

static int
ieee80211_ioctl_getchanlist(struct ieee80211vap *vap, struct ieee80211req *ireq)
{
	struct ieee80211com *ic = vap->iv_ic;

	if (sizeof(ic->ic_chan_active) < ireq->i_len)
		ireq->i_len = sizeof(ic->ic_chan_active);
	return copyout(&ic->ic_chan_active, ireq->i_data, ireq->i_len);
}

static int
ieee80211_ioctl_getchaninfo(struct ieee80211vap *vap, struct ieee80211req *ireq)
{
	struct ieee80211com *ic = vap->iv_ic;
	uint32_t space;

	space = __offsetof(struct ieee80211req_chaninfo,
			ic_chans[ic->ic_nchans]);
	if (space > ireq->i_len)
		space = ireq->i_len;
	/* XXX assumes compatible layout */
	return copyout(&ic->ic_nchans, ireq->i_data, space);
}

static int
ieee80211_ioctl_getwpaie(struct ieee80211vap *vap,
	struct ieee80211req *ireq, int req)
{
	struct ieee80211_node *ni;
	struct ieee80211req_wpaie2 *wpaie;
	int error;

	if (ireq->i_len < IEEE80211_ADDR_LEN)
		return EINVAL;
	wpaie = IEEE80211_MALLOC(sizeof(*wpaie), M_TEMP,
	    IEEE80211_M_NOWAIT | IEEE80211_M_ZERO);
	if (wpaie == NULL)
		return ENOMEM;
	error = copyin(ireq->i_data, wpaie->wpa_macaddr, IEEE80211_ADDR_LEN);
	if (error != 0)
		goto bad;
	ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, wpaie->wpa_macaddr);
	if (ni == NULL) {
		error = ENOENT;
		goto bad;
	}
	if (ni->ni_ies.wpa_ie != NULL) {
		int ielen = ni->ni_ies.wpa_ie[1] + 2;
		if (ielen > sizeof(wpaie->wpa_ie))
			ielen = sizeof(wpaie->wpa_ie);
		memcpy(wpaie->wpa_ie, ni->ni_ies.wpa_ie, ielen);
	}
	if (req == IEEE80211_IOC_WPAIE2) {
		if (ni->ni_ies.rsn_ie != NULL) {
			int ielen = ni->ni_ies.rsn_ie[1] + 2;
			if (ielen > sizeof(wpaie->rsn_ie))
				ielen = sizeof(wpaie->rsn_ie);
			memcpy(wpaie->rsn_ie, ni->ni_ies.rsn_ie, ielen);
		}
		if (ireq->i_len > sizeof(struct ieee80211req_wpaie2))
			ireq->i_len = sizeof(struct ieee80211req_wpaie2);
	} else {
		/* compatibility op, may overwrite wpa ie */
		/* XXX check ic_flags? */
		if (ni->ni_ies.rsn_ie != NULL) {
			int ielen = ni->ni_ies.rsn_ie[1] + 2;
			if (ielen > sizeof(wpaie->wpa_ie))
				ielen = sizeof(wpaie->wpa_ie);
			memcpy(wpaie->wpa_ie, ni->ni_ies.rsn_ie, ielen);
		}
		if (ireq->i_len > sizeof(struct ieee80211req_wpaie))
			ireq->i_len = sizeof(struct ieee80211req_wpaie);
	}
	ieee80211_free_node(ni);
	error = copyout(wpaie, ireq->i_data, ireq->i_len);
bad:
	IEEE80211_FREE(wpaie, M_TEMP);
	return error;
}

static int
ieee80211_ioctl_getstastats(struct ieee80211vap *vap, struct ieee80211req *ireq)
{
	struct ieee80211_node *ni;
	uint8_t macaddr[IEEE80211_ADDR_LEN];
	const size_t off = __offsetof(struct ieee80211req_sta_stats, is_stats);
	int error;

	if (ireq->i_len < off)
		return EINVAL;
	error = copyin(ireq->i_data, macaddr, IEEE80211_ADDR_LEN);
	if (error != 0)
		return error;
	ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, macaddr);
	if (ni == NULL)
		return ENOENT;
	if (ireq->i_len > sizeof(struct ieee80211req_sta_stats))
		ireq->i_len = sizeof(struct ieee80211req_sta_stats);
	/* NB: copy out only the statistics */
	error = copyout(&ni->ni_stats, (uint8_t *) ireq->i_data + off,
			ireq->i_len - off);
	ieee80211_free_node(ni);
	return error;
}

struct scanreq {
	struct ieee80211req_scan_result *sr;
	size_t space;
};

static size_t
scan_space(const struct ieee80211_scan_entry *se, int *ielen)
{
	size_t len;

	*ielen = se->se_ies.len;
	/*
	 * NB: ie's can be no more than 255 bytes and the max 802.11
	 * packet is <3Kbytes so we are sure this doesn't overflow
	 * 16-bits; if this is a concern we can drop the ie's.
	 */
	len = sizeof(struct ieee80211req_scan_result) + se->se_ssid[1] +
	    se->se_meshid[1] + *ielen;
	return roundup(len, sizeof(uint32_t));
}

static void
get_scan_space(void *arg, const struct ieee80211_scan_entry *se)
{
	struct scanreq *req = arg;
	int ielen;

	req->space += scan_space(se, &ielen);
}

static void
get_scan_result(void *arg, const struct ieee80211_scan_entry *se)
{
	struct scanreq *req = arg;
	struct ieee80211req_scan_result *sr;
	int ielen, len, nr, nxr;
	uint8_t *cp;

	len = scan_space(se, &ielen);
	if (len > req->space)
		return;

	sr = req->sr;
	KASSERT(len <= 65535 && ielen <= 65535,
	    ("len %u ssid %u ie %u", len, se->se_ssid[1], ielen));
	sr->isr_len = len;
	sr->isr_ie_off = sizeof(struct ieee80211req_scan_result);
	sr->isr_ie_len = ielen;
	sr->isr_freq = se->se_chan->ic_freq;
	sr->isr_flags = se->se_chan->ic_flags;
	sr->isr_rssi = se->se_rssi;
	sr->isr_noise = se->se_noise;
	sr->isr_intval = se->se_intval;
	sr->isr_capinfo = se->se_capinfo;
	sr->isr_erp = se->se_erp;
	IEEE80211_ADDR_COPY(sr->isr_bssid, se->se_bssid);
	nr = min(se->se_rates[1], IEEE80211_RATE_MAXSIZE);
	memcpy(sr->isr_rates, se->se_rates+2, nr);
	nxr = min(se->se_xrates[1], IEEE80211_RATE_MAXSIZE - nr);
	memcpy(sr->isr_rates+nr, se->se_xrates+2, nxr);
	sr->isr_nrates = nr + nxr;

	/* copy SSID */
	sr->isr_ssid_len = se->se_ssid[1];
	cp = ((uint8_t *)sr) + sr->isr_ie_off;
	memcpy(cp, se->se_ssid+2, sr->isr_ssid_len);

	/* copy mesh id */
	cp += sr->isr_ssid_len;
	sr->isr_meshid_len = se->se_meshid[1];
	memcpy(cp, se->se_meshid+2, sr->isr_meshid_len);
	cp += sr->isr_meshid_len;

	if (ielen)
		memcpy(cp, se->se_ies.data, ielen);

	req->space -= len;
	req->sr = (struct ieee80211req_scan_result *)(((uint8_t *)sr) + len);
}

static int
ieee80211_ioctl_getscanresults(struct ieee80211vap *vap,
	struct ieee80211req *ireq)
{
	struct scanreq req;
	int error;

	if (ireq->i_len < sizeof(struct scanreq))
		return EFAULT;

	error = 0;
	req.space = 0;
	ieee80211_scan_iterate(vap, get_scan_space, &req);
	if (req.space > ireq->i_len)
		req.space = ireq->i_len;
	if (req.space > 0) {
		uint32_t space;
		void *p;

		space = req.space;
		/* XXX IEEE80211_M_WAITOK after driver lock released */
		p = IEEE80211_MALLOC(space, M_TEMP,
		    IEEE80211_M_NOWAIT | IEEE80211_M_ZERO);
		if (p == NULL)
			return ENOMEM;
		req.sr = p;
		ieee80211_scan_iterate(vap, get_scan_result, &req);
		ireq->i_len = space - req.space;
		error = copyout(p, ireq->i_data, ireq->i_len);
		IEEE80211_FREE(p, M_TEMP);
	} else
		ireq->i_len = 0;

	return error;
}

struct stainforeq {
	struct ieee80211req_sta_info *si;
	size_t	space;
};

static size_t
sta_space(const struct ieee80211_node *ni, size_t *ielen)
{
	*ielen = ni->ni_ies.len;
	return roundup(sizeof(struct ieee80211req_sta_info) + *ielen,
		      sizeof(uint32_t));
}

static void
get_sta_space(void *arg, struct ieee80211_node *ni)
{
	struct stainforeq *req = arg;
	size_t ielen;

	if (ni->ni_vap->iv_opmode == IEEE80211_M_HOSTAP &&
	    ni->ni_associd == 0)	/* only associated stations */
		return;
	req->space += sta_space(ni, &ielen);
}

static void
get_sta_info(void *arg, struct ieee80211_node *ni)
{
	struct stainforeq *req = arg;
	struct ieee80211vap *vap = ni->ni_vap;
	struct ieee80211req_sta_info *si;
	size_t ielen, len;
	uint8_t *cp;

	if (vap->iv_opmode == IEEE80211_M_HOSTAP &&
	    ni->ni_associd == 0)	/* only associated stations */
		return;
	if (ni->ni_chan == IEEE80211_CHAN_ANYC)	/* XXX bogus entry */
		return;
	len = sta_space(ni, &ielen);
	if (len > req->space)
		return;
	si = req->si;
	si->isi_len = len;
	si->isi_ie_off = sizeof(struct ieee80211req_sta_info);
	si->isi_ie_len = ielen;
	si->isi_freq = ni->ni_chan->ic_freq;
	si->isi_flags = ni->ni_chan->ic_flags;
	si->isi_state = ni->ni_flags;
	si->isi_authmode = ni->ni_authmode;
	vap->iv_ic->ic_node_getsignal(ni, &si->isi_rssi, &si->isi_noise);
	vap->iv_ic->ic_node_getmimoinfo(ni, &si->isi_mimo);
	si->isi_capinfo = ni->ni_capinfo;
	si->isi_erp = ni->ni_erp;
	IEEE80211_ADDR_COPY(si->isi_macaddr, ni->ni_macaddr);
	si->isi_nrates = ni->ni_rates.rs_nrates;
	if (si->isi_nrates > 15)
		si->isi_nrates = 15;
	memcpy(si->isi_rates, ni->ni_rates.rs_rates, si->isi_nrates);
	si->isi_txrate = ni->ni_txrate;
	if (si->isi_txrate & IEEE80211_RATE_MCS) {
		const struct ieee80211_mcs_rates *mcs =
		    &ieee80211_htrates[ni->ni_txrate &~ IEEE80211_RATE_MCS];
		if (IEEE80211_IS_CHAN_HT40(ni->ni_chan)) {
			if (ni->ni_flags & IEEE80211_NODE_SGI40)
				si->isi_txmbps = mcs->ht40_rate_800ns;
			else
				si->isi_txmbps = mcs->ht40_rate_400ns;
		} else {
			if (ni->ni_flags & IEEE80211_NODE_SGI20)
				si->isi_txmbps = mcs->ht20_rate_800ns;
			else
				si->isi_txmbps = mcs->ht20_rate_400ns;
		}
	} else
		si->isi_txmbps = si->isi_txrate;
	si->isi_associd = ni->ni_associd;
	si->isi_txpower = ni->ni_txpower;
	si->isi_vlan = ni->ni_vlan;
	if (ni->ni_flags & IEEE80211_NODE_QOS) {
		memcpy(si->isi_txseqs, ni->ni_txseqs, sizeof(ni->ni_txseqs));
		memcpy(si->isi_rxseqs, ni->ni_rxseqs, sizeof(ni->ni_rxseqs));
	} else {
		si->isi_txseqs[0] = ni->ni_txseqs[IEEE80211_NONQOS_TID];
		si->isi_rxseqs[0] = ni->ni_rxseqs[IEEE80211_NONQOS_TID];
	}
	/* NB: leave all cases in case we relax ni_associd == 0 check */
	if (ieee80211_node_is_authorized(ni))
		si->isi_inact = vap->iv_inact_run;
	else if (ni->ni_associd != 0 ||
	    (vap->iv_opmode == IEEE80211_M_WDS &&
	     (vap->iv_flags_ext & IEEE80211_FEXT_WDSLEGACY)))
		si->isi_inact = vap->iv_inact_auth;
	else
		si->isi_inact = vap->iv_inact_init;
	si->isi_inact = (si->isi_inact - ni->ni_inact) * IEEE80211_INACT_WAIT;
	si->isi_localid = ni->ni_mllid;
	si->isi_peerid = ni->ni_mlpid;
	si->isi_peerstate = ni->ni_mlstate;

	if (ielen) {
		cp = ((uint8_t *)si) + si->isi_ie_off;
		memcpy(cp, ni->ni_ies.data, ielen);
	}

	req->si = (struct ieee80211req_sta_info *)(((uint8_t *)si) + len);
	req->space -= len;
}

static int
getstainfo_common(struct ieee80211vap *vap, struct ieee80211req *ireq,
	struct ieee80211_node *ni, size_t off)
{
	struct ieee80211com *ic = vap->iv_ic;
	struct stainforeq req;
	size_t space;
	void *p;
	int error;

	error = 0;
	req.space = 0;
	if (ni == NULL) {
		ieee80211_iterate_nodes_vap(&ic->ic_sta, vap, get_sta_space,
		    &req);
	} else
		get_sta_space(&req, ni);
	if (req.space > ireq->i_len)
		req.space = ireq->i_len;
	if (req.space > 0) {
		space = req.space;
		/* XXX IEEE80211_M_WAITOK after driver lock released */
		p = IEEE80211_MALLOC(space, M_TEMP,
		    IEEE80211_M_NOWAIT | IEEE80211_M_ZERO);
		if (p == NULL) {
			error = ENOMEM;
			goto bad;
		}
		req.si = p;
		if (ni == NULL) {
			ieee80211_iterate_nodes_vap(&ic->ic_sta, vap,
			    get_sta_info, &req);
		} else
			get_sta_info(&req, ni);
		ireq->i_len = space - req.space;
		error = copyout(p, (uint8_t *) ireq->i_data+off, ireq->i_len);
		IEEE80211_FREE(p, M_TEMP);
	} else
		ireq->i_len = 0;
bad:
	if (ni != NULL)
		ieee80211_free_node(ni);
	return error;
}

static int
ieee80211_ioctl_getstainfo(struct ieee80211vap *vap, struct ieee80211req *ireq)
{
	uint8_t macaddr[IEEE80211_ADDR_LEN];
	const size_t off = __offsetof(struct ieee80211req_sta_req, info);
	struct ieee80211_node *ni;
	int error;

	if (ireq->i_len < sizeof(struct ieee80211req_sta_req))
		return EFAULT;
	error = copyin(ireq->i_data, macaddr, IEEE80211_ADDR_LEN);
	if (error != 0)
		return error;
	if (IEEE80211_ADDR_EQ(macaddr, vap->iv_ifp->if_broadcastaddr)) {
		ni = NULL;
	} else {
		ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, macaddr);
		if (ni == NULL)
			return ENOENT;
	}
	return getstainfo_common(vap, ireq, ni, off);
}

static int
ieee80211_ioctl_getstatxpow(struct ieee80211vap *vap, struct ieee80211req *ireq)
{
	struct ieee80211_node *ni;
	struct ieee80211req_sta_txpow txpow;
	int error;

	if (ireq->i_len != sizeof(txpow))
		return EINVAL;
	error = copyin(ireq->i_data, &txpow, sizeof(txpow));
	if (error != 0)
		return error;
	ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, txpow.it_macaddr);
	if (ni == NULL)
		return ENOENT;
	txpow.it_txpow = ni->ni_txpower;
	error = copyout(&txpow, ireq->i_data, sizeof(txpow));
	ieee80211_free_node(ni);
	return error;
}

static int
ieee80211_ioctl_getwmeparam(struct ieee80211vap *vap, struct ieee80211req *ireq)
{
	struct ieee80211com *ic = vap->iv_ic;
	struct ieee80211_wme_state *wme = &ic->ic_wme;
	struct wmeParams *wmep;
	int ac;

	if ((ic->ic_caps & IEEE80211_C_WME) == 0)
		return EINVAL;

	ac = (ireq->i_len & IEEE80211_WMEPARAM_VAL);
	if (ac >= WME_NUM_AC)
		ac = WME_AC_BE;
	if (ireq->i_len & IEEE80211_WMEPARAM_BSS)
		wmep = &wme->wme_wmeBssChanParams.cap_wmeParams[ac];
	else
		wmep = &wme->wme_wmeChanParams.cap_wmeParams[ac];
	switch (ireq->i_type) {
	case IEEE80211_IOC_WME_CWMIN:		/* WME: CWmin */
		ireq->i_val = wmep->wmep_logcwmin;
		break;
	case IEEE80211_IOC_WME_CWMAX:		/* WME: CWmax */
		ireq->i_val = wmep->wmep_logcwmax;
		break;
	case IEEE80211_IOC_WME_AIFS:		/* WME: AIFS */
		ireq->i_val = wmep->wmep_aifsn;
		break;
	case IEEE80211_IOC_WME_TXOPLIMIT:	/* WME: txops limit */
		ireq->i_val = wmep->wmep_txopLimit;
		break;
	case IEEE80211_IOC_WME_ACM:		/* WME: ACM (bss only) */
		wmep = &wme->wme_wmeBssChanParams.cap_wmeParams[ac];
		ireq->i_val = wmep->wmep_acm;
		break;
	case IEEE80211_IOC_WME_ACKPOLICY:	/* WME: ACK policy (!bss only)*/
		wmep = &wme->wme_wmeChanParams.cap_wmeParams[ac];
		ireq->i_val = !wmep->wmep_noackPolicy;
		break;
	}
	return 0;
}

static int
ieee80211_ioctl_getmaccmd(struct ieee80211vap *vap, struct ieee80211req *ireq)
{
	const struct ieee80211_aclator *acl = vap->iv_acl;

	return (acl == NULL ? EINVAL : acl->iac_getioctl(vap, ireq));
}

static int
ieee80211_ioctl_getcurchan(struct ieee80211vap *vap, struct ieee80211req *ireq)
{
	struct ieee80211com *ic = vap->iv_ic;
	struct ieee80211_channel *c;

	if (ireq->i_len != sizeof(struct ieee80211_channel))
		return EINVAL;
	/*
	 * vap's may have different operating channels when HT is
	 * in use.  When in RUN state report the vap-specific channel.
	 * Otherwise return curchan.
	 */
	if (vap->iv_state == IEEE80211_S_RUN || vap->iv_state == IEEE80211_S_SLEEP)
		c = vap->iv_bss->ni_chan;
	else
		c = ic->ic_curchan;
	return copyout(c, ireq->i_data, sizeof(*c));
}

static int
getappie(const struct ieee80211_appie *aie, struct ieee80211req *ireq)
{
	if (aie == NULL)
		return EINVAL;
	/* NB: truncate, caller can check length */
	if (ireq->i_len > aie->ie_len)
		ireq->i_len = aie->ie_len;
	return copyout(aie->ie_data, ireq->i_data, ireq->i_len);
}

static int
ieee80211_ioctl_getappie(struct ieee80211vap *vap, struct ieee80211req *ireq)
{
	uint8_t fc0;

	fc0 = ireq->i_val & 0xff;
	if ((fc0 & IEEE80211_FC0_TYPE_MASK) != IEEE80211_FC0_TYPE_MGT)
		return EINVAL;
	/* NB: could check iv_opmode and reject but hardly worth the effort */
	switch (fc0 & IEEE80211_FC0_SUBTYPE_MASK) {
	case IEEE80211_FC0_SUBTYPE_BEACON:
		return getappie(vap->iv_appie_beacon, ireq);
	case IEEE80211_FC0_SUBTYPE_PROBE_RESP:
		return getappie(vap->iv_appie_proberesp, ireq);
	case IEEE80211_FC0_SUBTYPE_ASSOC_RESP:
		return getappie(vap->iv_appie_assocresp, ireq);
	case IEEE80211_FC0_SUBTYPE_PROBE_REQ:
		return getappie(vap->iv_appie_probereq, ireq);
	case IEEE80211_FC0_SUBTYPE_ASSOC_REQ:
		return getappie(vap->iv_appie_assocreq, ireq);
	case IEEE80211_FC0_SUBTYPE_BEACON|IEEE80211_FC0_SUBTYPE_PROBE_RESP:
		return getappie(vap->iv_appie_wpa, ireq);
	}
	return EINVAL;
}

static int
ieee80211_ioctl_getregdomain(struct ieee80211vap *vap,
	const struct ieee80211req *ireq)
{
	struct ieee80211com *ic = vap->iv_ic;

	if (ireq->i_len != sizeof(ic->ic_regdomain))
		return EINVAL;
	return copyout(&ic->ic_regdomain, ireq->i_data,
	    sizeof(ic->ic_regdomain));
}

static int
ieee80211_ioctl_getroam(struct ieee80211vap *vap,
	const struct ieee80211req *ireq)
{
	size_t len = ireq->i_len;
	/* NB: accept short requests for backwards compat */
	if (len > sizeof(vap->iv_roamparms))
		len = sizeof(vap->iv_roamparms);
	return copyout(vap->iv_roamparms, ireq->i_data, len);
}

static int
ieee80211_ioctl_gettxparams(struct ieee80211vap *vap,
	const struct ieee80211req *ireq)
{
	size_t len = ireq->i_len;
	/* NB: accept short requests for backwards compat */
	if (len > sizeof(vap->iv_txparms))
		len = sizeof(vap->iv_txparms);
	return copyout(vap->iv_txparms, ireq->i_data, len);
}

static int
ieee80211_ioctl_getdevcaps(struct ieee80211com *ic,
	const struct ieee80211req *ireq)
{
	struct ieee80211_devcaps_req *dc;
	struct ieee80211req_chaninfo *ci;
	int maxchans, error;

	maxchans = 1 + ((ireq->i_len - sizeof(struct ieee80211_devcaps_req)) /
	    sizeof(struct ieee80211_channel));
	/* NB: require 1 so we know ic_nchans is accessible */
	if (maxchans < 1)
		return EINVAL;
	/* constrain max request size, 2K channels is ~24Kbytes */
	if (maxchans > 2048)
		maxchans = 2048;
	dc = (struct ieee80211_devcaps_req *)
	    IEEE80211_MALLOC(IEEE80211_DEVCAPS_SIZE(maxchans), M_TEMP,
	    IEEE80211_M_NOWAIT | IEEE80211_M_ZERO);
	if (dc == NULL)
		return ENOMEM;
	dc->dc_drivercaps = ic->ic_caps;
	/*
	 * Announce the set of both hardware and software supported
	 * ciphers.
	 */
	dc->dc_cryptocaps = ic->ic_cryptocaps | ic->ic_sw_cryptocaps;
	dc->dc_htcaps = ic->ic_htcaps;
	dc->dc_vhtcaps = ic->ic_vht_cap.vht_cap_info;
	ci = &dc->dc_chaninfo;
	ic->ic_getradiocaps(ic, maxchans, &ci->ic_nchans, ci->ic_chans);
	KASSERT(ci->ic_nchans <= maxchans,
	    ("nchans %d maxchans %d", ci->ic_nchans, maxchans));
	ieee80211_sort_channels(ci->ic_chans, ci->ic_nchans);
	error = copyout(dc, ireq->i_data, IEEE80211_DEVCAPS_SPACE(dc));
	IEEE80211_FREE(dc, M_TEMP);
	return error;
}

static int
ieee80211_ioctl_getstavlan(struct ieee80211vap *vap, struct ieee80211req *ireq)
{
	struct ieee80211_node *ni;
	struct ieee80211req_sta_vlan vlan;
	int error;

	if (ireq->i_len != sizeof(vlan))
		return EINVAL;
	error = copyin(ireq->i_data, &vlan, sizeof(vlan));
	if (error != 0)
		return error;
	if (!IEEE80211_ADDR_EQ(vlan.sv_macaddr, zerobssid)) {
		ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap,
		    vlan.sv_macaddr);
		if (ni == NULL)
			return ENOENT;
	} else
		ni = ieee80211_ref_node(vap->iv_bss);
	vlan.sv_vlan = ni->ni_vlan;
	error = copyout(&vlan, ireq->i_data, sizeof(vlan));
	ieee80211_free_node(ni);
	return error;
}

/*
 * Dummy ioctl get handler so the linker set is defined.
 */
static int
dummy_ioctl_get(struct ieee80211vap *vap, struct ieee80211req *ireq)
{
	return ENOSYS;
}
IEEE80211_IOCTL_GET(dummy, dummy_ioctl_get);

static int
ieee80211_ioctl_getdefault(struct ieee80211vap *vap, struct ieee80211req *ireq)
{
	ieee80211_ioctl_getfunc * const *get;
	int error;

	SET_FOREACH(get, ieee80211_ioctl_getset) {
		error = (*get)(vap, ireq);
		if (error != ENOSYS)
			return error;
	}
	return EINVAL;
}

static int
ieee80211_ioctl_get80211(struct ieee80211vap *vap, u_long cmd,
    struct ieee80211req *ireq)
{
	struct ieee80211com *ic = vap->iv_ic;
	u_int kid, len;
	uint8_t tmpkey[IEEE80211_KEYBUF_SIZE];
	char tmpssid[IEEE80211_NWID_LEN];
	int error = 0;

	switch (ireq->i_type) {
	case IEEE80211_IOC_IC_NAME:
		len = strlen(ic->ic_name) + 1;
		if (len > ireq->i_len)
			return (EINVAL);
		ireq->i_len = len;
		error = copyout(ic->ic_name, ireq->i_data, ireq->i_len);
		break;
	case IEEE80211_IOC_SSID:
		switch (vap->iv_state) {
		case IEEE80211_S_INIT:
		case IEEE80211_S_SCAN:
			ireq->i_len = vap->iv_des_ssid[0].len;
			memcpy(tmpssid, vap->iv_des_ssid[0].ssid, ireq->i_len);
			break;
		default:
			ireq->i_len = vap->iv_bss->ni_esslen;
			memcpy(tmpssid, vap->iv_bss->ni_essid, ireq->i_len);
			break;
		}
		error = copyout(tmpssid, ireq->i_data, ireq->i_len);
		break;
	case IEEE80211_IOC_NUMSSIDS:
		ireq->i_val = 1;
		break;
	case IEEE80211_IOC_WEP:
		if ((vap->iv_flags & IEEE80211_F_PRIVACY) == 0)
			ireq->i_val = IEEE80211_WEP_OFF;
		else if (vap->iv_flags & IEEE80211_F_DROPUNENC)
			ireq->i_val = IEEE80211_WEP_ON;
		else
			ireq->i_val = IEEE80211_WEP_MIXED;
		break;
	case IEEE80211_IOC_WEPKEY:
		kid = (u_int) ireq->i_val;
		if (kid >= IEEE80211_WEP_NKID)
			return EINVAL;
		len = (u_int) vap->iv_nw_keys[kid].wk_keylen;
		/* NB: only root can read WEP keys */
		if (ieee80211_priv_check_vap_getkey(cmd, vap, NULL) == 0) {
			bcopy(vap->iv_nw_keys[kid].wk_key, tmpkey, len);
		} else {
			bzero(tmpkey, len);
		}
		ireq->i_len = len;
		error = copyout(tmpkey, ireq->i_data, len);
		break;
	case IEEE80211_IOC_NUMWEPKEYS:
		ireq->i_val = IEEE80211_WEP_NKID;
		break;
	case IEEE80211_IOC_WEPTXKEY:
		ireq->i_val = vap->iv_def_txkey;
		break;
	case IEEE80211_IOC_AUTHMODE:
		if (vap->iv_flags & IEEE80211_F_WPA)
			ireq->i_val = IEEE80211_AUTH_WPA;
		else
			ireq->i_val = vap->iv_bss->ni_authmode;
		break;
	case IEEE80211_IOC_CHANNEL:
		ireq->i_val = ieee80211_chan2ieee(ic, ic->ic_curchan);
		break;
	case IEEE80211_IOC_POWERSAVE:
		if (vap->iv_flags & IEEE80211_F_PMGTON)
			ireq->i_val = IEEE80211_POWERSAVE_ON;
		else
			ireq->i_val = IEEE80211_POWERSAVE_OFF;
		break;
	case IEEE80211_IOC_POWERSAVESLEEP:
		ireq->i_val = ic->ic_lintval;
		break;
	case IEEE80211_IOC_RTSTHRESHOLD:
		ireq->i_val = vap->iv_rtsthreshold;
		break;
	case IEEE80211_IOC_PROTMODE:
		ireq->i_val = vap->iv_protmode;
		break;
	case IEEE80211_IOC_TXPOWER:
		/*
		 * Tx power limit is the min of max regulatory
		 * power, any user-set limit, and the max the
		 * radio can do.
		 *
		 * TODO: methodize this
		 */
		ireq->i_val = 2*ic->ic_curchan->ic_maxregpower;
		if (ireq->i_val > ic->ic_txpowlimit)
			ireq->i_val = ic->ic_txpowlimit;
		if (ireq->i_val > ic->ic_curchan->ic_maxpower)
			ireq->i_val = ic->ic_curchan->ic_maxpower;
		break;
	case IEEE80211_IOC_WPA:
		switch (vap->iv_flags & IEEE80211_F_WPA) {
		case IEEE80211_F_WPA1:
			ireq->i_val = 1;
			break;
		case IEEE80211_F_WPA2:
			ireq->i_val = 2;
			break;
		case IEEE80211_F_WPA1 | IEEE80211_F_WPA2:
			ireq->i_val = 3;
			break;
		default:
			ireq->i_val = 0;
			break;
		}
		break;
	case IEEE80211_IOC_CHANLIST:
		error = ieee80211_ioctl_getchanlist(vap, ireq);
		break;
	case IEEE80211_IOC_ROAMING:
		ireq->i_val = vap->iv_roaming;
		break;
	case IEEE80211_IOC_PRIVACY:
		ireq->i_val = (vap->iv_flags & IEEE80211_F_PRIVACY) != 0;
		break;
	case IEEE80211_IOC_DROPUNENCRYPTED:
		ireq->i_val = (vap->iv_flags & IEEE80211_F_DROPUNENC) != 0;
		break;
	case IEEE80211_IOC_COUNTERMEASURES:
		ireq->i_val = (vap->iv_flags & IEEE80211_F_COUNTERM) != 0;
		break;
	case IEEE80211_IOC_WME:
		ireq->i_val = (vap->iv_flags & IEEE80211_F_WME) != 0;
		break;
	case IEEE80211_IOC_HIDESSID:
		ireq->i_val = (vap->iv_flags & IEEE80211_F_HIDESSID) != 0;
		break;
	case IEEE80211_IOC_APBRIDGE:
		ireq->i_val = (vap->iv_flags & IEEE80211_F_NOBRIDGE) == 0;
		break;
	case IEEE80211_IOC_WPAKEY:
		error = ieee80211_ioctl_getkey(cmd, vap, ireq);
		break;
	case IEEE80211_IOC_CHANINFO:
		error = ieee80211_ioctl_getchaninfo(vap, ireq);
		break;
	case IEEE80211_IOC_BSSID:
		if (ireq->i_len != IEEE80211_ADDR_LEN)
			return EINVAL;
		if (vap->iv_state == IEEE80211_S_RUN || vap->iv_state == IEEE80211_S_SLEEP) {
			error = copyout(vap->iv_opmode == IEEE80211_M_WDS ?
			    vap->iv_bss->ni_macaddr : vap->iv_bss->ni_bssid,
			    ireq->i_data, ireq->i_len);
		} else
			error = copyout(vap->iv_des_bssid, ireq->i_data,
			    ireq->i_len);
		break;
	case IEEE80211_IOC_WPAIE:
	case IEEE80211_IOC_WPAIE2:
		error = ieee80211_ioctl_getwpaie(vap, ireq, ireq->i_type);
		break;
	case IEEE80211_IOC_SCAN_RESULTS:
		error = ieee80211_ioctl_getscanresults(vap, ireq);
		break;
	case IEEE80211_IOC_STA_STATS:
		error = ieee80211_ioctl_getstastats(vap, ireq);
		break;
	case IEEE80211_IOC_TXPOWMAX:
		ireq->i_val = vap->iv_bss->ni_txpower;
		break;
	case IEEE80211_IOC_STA_TXPOW:
		error = ieee80211_ioctl_getstatxpow(vap, ireq);
		break;
	case IEEE80211_IOC_STA_INFO:
		error = ieee80211_ioctl_getstainfo(vap, ireq);
		break;
	case IEEE80211_IOC_WME_CWMIN:		/* WME: CWmin */
	case IEEE80211_IOC_WME_CWMAX:		/* WME: CWmax */
	case IEEE80211_IOC_WME_AIFS:		/* WME: AIFS */
	case IEEE80211_IOC_WME_TXOPLIMIT:	/* WME: txops limit */
	case IEEE80211_IOC_WME_ACM:		/* WME: ACM (bss only) */
	case IEEE80211_IOC_WME_ACKPOLICY:	/* WME: ACK policy (!bss only) */
		error = ieee80211_ioctl_getwmeparam(vap, ireq);
		break;
	case IEEE80211_IOC_DTIM_PERIOD:
		ireq->i_val = vap->iv_dtim_period;
		break;
	case IEEE80211_IOC_BEACON_INTERVAL:
		/* NB: get from ic_bss for station mode */
		ireq->i_val = vap->iv_bss->ni_intval;
		break;
	case IEEE80211_IOC_PUREG:
		ireq->i_val = (vap->iv_flags & IEEE80211_F_PUREG) != 0;
		break;
	case IEEE80211_IOC_QUIET:
		ireq->i_val = vap->iv_quiet;
		break;
	case IEEE80211_IOC_QUIET_COUNT:
		ireq->i_val = vap->iv_quiet_count;
		break;
	case IEEE80211_IOC_QUIET_PERIOD:
		ireq->i_val = vap->iv_quiet_period;
		break;
	case IEEE80211_IOC_QUIET_DUR:
		ireq->i_val = vap->iv_quiet_duration;
		break;
	case IEEE80211_IOC_QUIET_OFFSET:
		ireq->i_val = vap->iv_quiet_offset;
		break;
	case IEEE80211_IOC_BGSCAN:
		ireq->i_val = (vap->iv_flags & IEEE80211_F_BGSCAN) != 0;
		break;
	case IEEE80211_IOC_BGSCAN_IDLE:
		ireq->i_val = vap->iv_bgscanidle*hz/1000;	/* ms */
		break;
	case IEEE80211_IOC_BGSCAN_INTERVAL:
		ireq->i_val = vap->iv_bgscanintvl/hz;		/* seconds */
		break;
	case IEEE80211_IOC_SCANVALID:
		ireq->i_val = vap->iv_scanvalid/hz;		/* seconds */
		break;
	case IEEE80211_IOC_FRAGTHRESHOLD:
		ireq->i_val = vap->iv_fragthreshold;
		break;
	case IEEE80211_IOC_MACCMD:
		error = ieee80211_ioctl_getmaccmd(vap, ireq);
		break;
	case IEEE80211_IOC_BURST:
		ireq->i_val = (vap->iv_flags & IEEE80211_F_BURST) != 0;
		break;
	case IEEE80211_IOC_BMISSTHRESHOLD:
		ireq->i_val = vap->iv_bmissthreshold;
		break;
	case IEEE80211_IOC_CURCHAN:
		error = ieee80211_ioctl_getcurchan(vap, ireq);
		break;
	case IEEE80211_IOC_SHORTGI:
		ireq->i_val = 0;
		if (vap->iv_flags_ht & IEEE80211_FHT_SHORTGI20)
			ireq->i_val |= IEEE80211_HTCAP_SHORTGI20;
		if (vap->iv_flags_ht & IEEE80211_FHT_SHORTGI40)
			ireq->i_val |= IEEE80211_HTCAP_SHORTGI40;
		break;
	case IEEE80211_IOC_AMPDU:
		ireq->i_val = 0;
		if (vap->iv_flags_ht & IEEE80211_FHT_AMPDU_TX)
			ireq->i_val |= 1;
		if (vap->iv_flags_ht & IEEE80211_FHT_AMPDU_RX)
			ireq->i_val |= 2;
		break;
	case IEEE80211_IOC_AMPDU_LIMIT:
		/* XXX TODO: make this a per-node thing; and leave this as global */
		if (vap->iv_opmode == IEEE80211_M_HOSTAP)
			ireq->i_val = vap->iv_ampdu_rxmax;
		else if (vap->iv_state == IEEE80211_S_RUN || vap->iv_state == IEEE80211_S_SLEEP)
			/*
			 * XXX TODO: this isn't completely correct, as we've
			 * negotiated the higher of the two.
			 */
			ireq->i_val = _IEEE80211_MASKSHIFT( vap->iv_bss->ni_htparam,
			    IEEE80211_HTCAP_MAXRXAMPDU);
		else
			ireq->i_val = vap->iv_ampdu_limit;
		break;
	case IEEE80211_IOC_AMPDU_DENSITY:
		/* XXX TODO: make this a per-node thing; and leave this as global */
		if (vap->iv_opmode == IEEE80211_M_STA &&
		    (vap->iv_state == IEEE80211_S_RUN || vap->iv_state == IEEE80211_S_SLEEP))
			/*
			 * XXX TODO: this isn't completely correct, as we've
			 * negotiated the higher of the two.
			 */
			ireq->i_val = _IEEE80211_MASKSHIFT(vap->iv_bss->ni_htparam,
			    IEEE80211_HTCAP_MPDUDENSITY);
		else
			ireq->i_val = vap->iv_ampdu_density;
		break;
	case IEEE80211_IOC_AMSDU:
		ireq->i_val = 0;
		if (vap->iv_flags_ht & IEEE80211_FHT_AMSDU_TX)
			ireq->i_val |= 1;
		if (vap->iv_flags_ht & IEEE80211_FHT_AMSDU_RX)
			ireq->i_val |= 2;
		break;
	case IEEE80211_IOC_AMSDU_LIMIT:
		ireq->i_val = vap->iv_amsdu_limit;	/* XXX truncation? */
		break;
	case IEEE80211_IOC_PUREN:
		ireq->i_val = (vap->iv_flags_ht & IEEE80211_FHT_PUREN) != 0;
		break;
	case IEEE80211_IOC_DOTH:
		ireq->i_val = (vap->iv_flags & IEEE80211_F_DOTH) != 0;
		break;
	case IEEE80211_IOC_REGDOMAIN:
		error = ieee80211_ioctl_getregdomain(vap, ireq);
		break;
	case IEEE80211_IOC_ROAM:
		error = ieee80211_ioctl_getroam(vap, ireq);
		break;
	case IEEE80211_IOC_TXPARAMS:
		error = ieee80211_ioctl_gettxparams(vap, ireq);
		break;
	case IEEE80211_IOC_HTCOMPAT:
		ireq->i_val = (vap->iv_flags_ht & IEEE80211_FHT_HTCOMPAT) != 0;
		break;
	case IEEE80211_IOC_DWDS:
		ireq->i_val = (vap->iv_flags & IEEE80211_F_DWDS) != 0;
		break;
	case IEEE80211_IOC_INACTIVITY:
		ireq->i_val = (vap->iv_flags_ext & IEEE80211_FEXT_INACT) != 0;
		break;
	case IEEE80211_IOC_APPIE:
		error = ieee80211_ioctl_getappie(vap, ireq);
		break;
	case IEEE80211_IOC_WPS:
		ireq->i_val = (vap->iv_flags_ext & IEEE80211_FEXT_WPS) != 0;
		break;
	case IEEE80211_IOC_TSN:
		ireq->i_val = (vap->iv_flags_ext & IEEE80211_FEXT_TSN) != 0;
		break;
	case IEEE80211_IOC_DFS:
		ireq->i_val = (vap->iv_flags_ext & IEEE80211_FEXT_DFS) != 0;
		break;
	case IEEE80211_IOC_DOTD:
		ireq->i_val = (vap->iv_flags_ext & IEEE80211_FEXT_DOTD) != 0;
		break;
	case IEEE80211_IOC_DEVCAPS:
		error = ieee80211_ioctl_getdevcaps(ic, ireq);
		break;
	case IEEE80211_IOC_HTPROTMODE:
		ireq->i_val = vap->iv_htprotmode;
		break;
	case IEEE80211_IOC_HTCONF:
		if (vap->iv_flags_ht & IEEE80211_FHT_HT) {
			ireq->i_val = 1;
			if (vap->iv_flags_ht & IEEE80211_FHT_USEHT40)
				ireq->i_val |= 2;
		} else
			ireq->i_val = 0;
		break;
	case IEEE80211_IOC_STA_VLAN:
		error = ieee80211_ioctl_getstavlan(vap, ireq);
		break;
	case IEEE80211_IOC_SMPS:
		if (vap->iv_opmode == IEEE80211_M_STA &&
		    (vap->iv_state == IEEE80211_S_RUN || vap->iv_state == IEEE80211_S_SLEEP)) {
			if (vap->iv_bss->ni_flags & IEEE80211_NODE_MIMO_RTS)
				ireq->i_val = IEEE80211_HTCAP_SMPS_DYNAMIC;
			else if (vap->iv_bss->ni_flags & IEEE80211_NODE_MIMO_PS)
				ireq->i_val = IEEE80211_HTCAP_SMPS_ENA;
			else
				ireq->i_val = IEEE80211_HTCAP_SMPS_OFF;
		} else
			ireq->i_val = vap->iv_htcaps & IEEE80211_HTCAP_SMPS;
		break;
	case IEEE80211_IOC_RIFS:
		if (vap->iv_opmode == IEEE80211_M_STA &&
		    (vap->iv_state == IEEE80211_S_RUN || vap->iv_state == IEEE80211_S_SLEEP))
			ireq->i_val =
			    (vap->iv_bss->ni_flags & IEEE80211_NODE_RIFS) != 0;
		else
			ireq->i_val =
			    (vap->iv_flags_ht & IEEE80211_FHT_RIFS) != 0;
		break;
	case IEEE80211_IOC_STBC:
		ireq->i_val = 0;
		if (vap->iv_flags_ht & IEEE80211_FHT_STBC_TX)
			ireq->i_val |= 1;
		if (vap->iv_flags_ht & IEEE80211_FHT_STBC_RX)
			ireq->i_val |= 2;
		break;
	case IEEE80211_IOC_LDPC:
		ireq->i_val = 0;
		if (vap->iv_flags_ht & IEEE80211_FHT_LDPC_TX)
			ireq->i_val |= 1;
		if (vap->iv_flags_ht & IEEE80211_FHT_LDPC_RX)
			ireq->i_val |= 2;
		break;
	case IEEE80211_IOC_UAPSD:
		ireq->i_val = 0;
		if (vap->iv_flags_ext & IEEE80211_FEXT_UAPSD)
			ireq->i_val = 1;
		break;
	case IEEE80211_IOC_VHTCONF:
		ireq->i_val = vap->iv_vht_flags & IEEE80211_FVHT_MASK;
		break;
	default:
		error = ieee80211_ioctl_getdefault(vap, ireq);
		break;
	}
	return error;
}

static int
ieee80211_ioctl_setkey(struct ieee80211vap *vap, struct ieee80211req *ireq)
{
	struct ieee80211req_key ik;
	struct ieee80211_node *ni;
	struct ieee80211_key *wk;
	uint16_t kid;
	int error, i;

	if (ireq->i_len != sizeof(ik))
		return EINVAL;
	error = copyin(ireq->i_data, &ik, sizeof(ik));
	if (error)
		return error;
	/* NB: cipher support is verified by ieee80211_crypt_newkey */
	/* NB: this also checks ik->ik_keylen > sizeof(wk->wk_key) */
	if (ik.ik_keylen > sizeof(ik.ik_keydata))
		return E2BIG;
	kid = ik.ik_keyix;
	if (kid == IEEE80211_KEYIX_NONE) {
		/* XXX unicast keys currently must be tx/rx */
		if (ik.ik_flags != (IEEE80211_KEY_XMIT | IEEE80211_KEY_RECV))
			return EINVAL;
		if (vap->iv_opmode == IEEE80211_M_STA) {
			ni = ieee80211_ref_node(vap->iv_bss);
			if (!IEEE80211_ADDR_EQ(ik.ik_macaddr, ni->ni_bssid)) {
				ieee80211_free_node(ni);
				return EADDRNOTAVAIL;
			}
		} else {
			ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap,
				ik.ik_macaddr);
			if (ni == NULL)
				return ENOENT;
		}
		wk = &ni->ni_ucastkey;
	} else {
		if (kid >= IEEE80211_WEP_NKID)
			return EINVAL;
		wk = &vap->iv_nw_keys[kid];
		/*
		 * Global slots start off w/o any assigned key index.
		 * Force one here for consistency with IEEE80211_IOC_WEPKEY.
		 */
		if (wk->wk_keyix == IEEE80211_KEYIX_NONE)
			wk->wk_keyix = kid;
		ni = NULL;
	}
	error = 0;
	ieee80211_key_update_begin(vap);
	if (ieee80211_crypto_newkey(vap, ik.ik_type, ik.ik_flags, wk)) {
		wk->wk_keylen = ik.ik_keylen;
		/* NB: MIC presence is implied by cipher type */
		if (wk->wk_keylen > IEEE80211_KEYBUF_SIZE)
			wk->wk_keylen = IEEE80211_KEYBUF_SIZE;
		for (i = 0; i < IEEE80211_TID_SIZE; i++)
			wk->wk_keyrsc[i] = ik.ik_keyrsc;
		wk->wk_keytsc = 0;			/* new key, reset */
		memset(wk->wk_key, 0, sizeof(wk->wk_key));
		memcpy(wk->wk_key, ik.ik_keydata, ik.ik_keylen);
		IEEE80211_ADDR_COPY(wk->wk_macaddr,
		    ni != NULL ?  ni->ni_macaddr : ik.ik_macaddr);
		if (!ieee80211_crypto_setkey(vap, wk))
			error = EIO;
		else if ((ik.ik_flags & IEEE80211_KEY_DEFAULT))
			/*
			 * Inform the driver that this is the default
			 * transmit key.  Now, ideally we'd just set
			 * a flag in the key update that would
			 * say "yes, we're the default key", but
			 * that currently isn't the way the ioctl ->
			 * key interface works.
			 */
			ieee80211_crypto_set_deftxkey(vap, kid);
	} else
		error = ENXIO;
	ieee80211_key_update_end(vap);
	if (ni != NULL)
		ieee80211_free_node(ni);
	return error;
}

static int
ieee80211_ioctl_delkey(struct ieee80211vap *vap, struct ieee80211req *ireq)
{
	struct ieee80211req_del_key dk;
	int kid, error;

	if (ireq->i_len != sizeof(dk))
		return EINVAL;
	error = copyin(ireq->i_data, &dk, sizeof(dk));
	if (error)
		return error;
	kid = dk.idk_keyix;
	/* XXX uint8_t -> uint16_t */
	if (dk.idk_keyix == (uint8_t) IEEE80211_KEYIX_NONE) {
		struct ieee80211_node *ni;

		if (vap->iv_opmode == IEEE80211_M_STA) {
			ni = ieee80211_ref_node(vap->iv_bss);
			if (!IEEE80211_ADDR_EQ(dk.idk_macaddr, ni->ni_bssid)) {
				ieee80211_free_node(ni);
				return EADDRNOTAVAIL;
			}
		} else {
			ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap,
				dk.idk_macaddr);
			if (ni == NULL)
				return ENOENT;
		}
		/* XXX error return */
		ieee80211_node_delucastkey(ni);
		ieee80211_free_node(ni);
	} else {
		if (kid >= IEEE80211_WEP_NKID)
			return EINVAL;
		/* XXX error return */
		ieee80211_crypto_delkey(vap, &vap->iv_nw_keys[kid]);
	}
	return 0;
}

struct mlmeop {
	struct ieee80211vap *vap;
	int	op;
	int	reason;
};

static void
mlmedebug(struct ieee80211vap *vap, const uint8_t mac[IEEE80211_ADDR_LEN],
	int op, int reason)
{
#ifdef IEEE80211_DEBUG
	static const struct {
		int mask;
		const char *opstr;
	} ops[] = {
		{ 0, "op#0" },
		{ IEEE80211_MSG_IOCTL | IEEE80211_MSG_STATE |
		  IEEE80211_MSG_ASSOC, "assoc" },
		{ IEEE80211_MSG_IOCTL | IEEE80211_MSG_STATE |
		  IEEE80211_MSG_ASSOC, "disassoc" },
		{ IEEE80211_MSG_IOCTL | IEEE80211_MSG_STATE |
		  IEEE80211_MSG_AUTH, "deauth" },
		{ IEEE80211_MSG_IOCTL | IEEE80211_MSG_STATE |
		  IEEE80211_MSG_AUTH, "authorize" },
		{ IEEE80211_MSG_IOCTL | IEEE80211_MSG_STATE |
		  IEEE80211_MSG_AUTH, "unauthorize" },
	};

	if (op == IEEE80211_MLME_AUTH) {
		IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_IOCTL |
		    IEEE80211_MSG_STATE | IEEE80211_MSG_AUTH, mac,
		    "station authenticate %s via MLME (reason: %d (%s))",
		    reason == IEEE80211_STATUS_SUCCESS ? "ACCEPT" : "REJECT",
		    reason, ieee80211_reason_to_string(reason));
	} else if (!(IEEE80211_MLME_ASSOC <= op && op <= IEEE80211_MLME_AUTH)) {
		IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_ANY, mac,
		    "unknown MLME request %d (reason: %d (%s))", op, reason,
		    ieee80211_reason_to_string(reason));
	} else if (reason == IEEE80211_STATUS_SUCCESS) {
		IEEE80211_NOTE_MAC(vap, ops[op].mask, mac,
		    "station %s via MLME", ops[op].opstr);
	} else {
		IEEE80211_NOTE_MAC(vap, ops[op].mask, mac,
		    "station %s via MLME (reason: %d (%s))", ops[op].opstr,
		    reason, ieee80211_reason_to_string(reason));
	}
#endif /* IEEE80211_DEBUG */
}

static void
domlme(void *arg, struct ieee80211_node *ni)
{
	struct mlmeop *mop = arg;
	struct ieee80211vap *vap = ni->ni_vap;

	if (vap != mop->vap)
		return;
	/*
	 * NB: if ni_associd is zero then the node is already cleaned
	 * up and we don't need to do this (we're safely holding a
	 * reference but should otherwise not modify it's state).
	 */ 
	if (ni->ni_associd == 0)
		return;
	mlmedebug(vap, ni->ni_macaddr, mop->op, mop->reason);
	if (mop->op == IEEE80211_MLME_DEAUTH) {
		IEEE80211_SEND_MGMT(ni, IEEE80211_FC0_SUBTYPE_DEAUTH,
		    mop->reason);
	} else {
		IEEE80211_SEND_MGMT(ni, IEEE80211_FC0_SUBTYPE_DISASSOC,
		    mop->reason);
	}
	ieee80211_node_leave(ni);
}

static int
setmlme_dropsta(struct ieee80211vap *vap,
	const uint8_t mac[IEEE80211_ADDR_LEN], struct mlmeop *mlmeop)
{
	struct ieee80211_node_table *nt = &vap->iv_ic->ic_sta;
	struct ieee80211_node *ni;
	int error = 0;

	/* NB: the broadcast address means do 'em all */
	if (!IEEE80211_ADDR_EQ(mac, vap->iv_ifp->if_broadcastaddr)) {
		IEEE80211_NODE_LOCK(nt);
		ni = ieee80211_find_node_locked(nt, mac);
		IEEE80211_NODE_UNLOCK(nt);
		/*
		 * Don't do the node update inside the node
		 * table lock.  This unfortunately causes LORs
		 * with drivers and their TX paths.
		 */
		if (ni != NULL) {
			domlme(mlmeop, ni);
			ieee80211_free_node(ni);
		} else
			error = ENOENT;
	} else {
		ieee80211_iterate_nodes(nt, domlme, mlmeop);
	}
	return error;
}

static int
setmlme_common(struct ieee80211vap *vap, int op,
	const uint8_t mac[IEEE80211_ADDR_LEN], int reason)
{
	struct ieee80211com *ic = vap->iv_ic;
	struct ieee80211_node_table *nt = &ic->ic_sta;
	struct ieee80211_node *ni;
	struct mlmeop mlmeop;
	int error;

	error = 0;
	switch (op) {
	case IEEE80211_MLME_DISASSOC:
	case IEEE80211_MLME_DEAUTH:
		switch (vap->iv_opmode) {
		case IEEE80211_M_STA:
			mlmedebug(vap, vap->iv_bss->ni_macaddr, op, reason);
			/* XXX not quite right */
			ieee80211_new_state(vap, IEEE80211_S_INIT, reason);
			break;
		case IEEE80211_M_HOSTAP:
			mlmeop.vap = vap;
			mlmeop.op = op;
			mlmeop.reason = reason;
			error = setmlme_dropsta(vap, mac, &mlmeop);
			break;
		case IEEE80211_M_WDS:
			/* XXX user app should send raw frame? */
			if (op != IEEE80211_MLME_DEAUTH) {
				error = EINVAL;
				break;
			}
#if 0
			/* XXX accept any address, simplifies user code */
			if (!IEEE80211_ADDR_EQ(mac, vap->iv_bss->ni_macaddr)) {
				error = EINVAL;
				break;
			}
#endif
			mlmedebug(vap, vap->iv_bss->ni_macaddr, op, reason);
			ni = ieee80211_ref_node(vap->iv_bss);
			IEEE80211_SEND_MGMT(ni,
			    IEEE80211_FC0_SUBTYPE_DEAUTH, reason);
			ieee80211_free_node(ni);
			break;
		case IEEE80211_M_MBSS:
			IEEE80211_NODE_LOCK(nt);
			ni = ieee80211_find_node_locked(nt, mac);
			/*
			 * Don't do the node update inside the node
			 * table lock.  This unfortunately causes LORs
			 * with drivers and their TX paths.
			 */
			IEEE80211_NODE_UNLOCK(nt);
			if (ni != NULL) {
				ieee80211_node_leave(ni);
				ieee80211_free_node(ni);
			} else {
				error = ENOENT;
			}
			break;
		default:
			error = EINVAL;
			break;
		}
		break;
	case IEEE80211_MLME_AUTHORIZE:
	case IEEE80211_MLME_UNAUTHORIZE:
		if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
		    vap->iv_opmode != IEEE80211_M_WDS) {
			error = EINVAL;
			break;
		}
		IEEE80211_NODE_LOCK(nt);
		ni = ieee80211_find_vap_node_locked(nt, vap, mac);
		/*
		 * Don't do the node update inside the node
		 * table lock.  This unfortunately causes LORs
		 * with drivers and their TX paths.
		 */
		IEEE80211_NODE_UNLOCK(nt);
		if (ni != NULL) {
			mlmedebug(vap, mac, op, reason);
			if (op == IEEE80211_MLME_AUTHORIZE)
				ieee80211_node_authorize(ni);
			else
				ieee80211_node_unauthorize(ni);
			ieee80211_free_node(ni);
		} else
			error = ENOENT;
		break;
	case IEEE80211_MLME_AUTH:
		if (vap->iv_opmode != IEEE80211_M_HOSTAP) {
			error = EINVAL;
			break;
		}
		IEEE80211_NODE_LOCK(nt);
		ni = ieee80211_find_vap_node_locked(nt, vap, mac);
		/*
		 * Don't do the node update inside the node
		 * table lock.  This unfortunately causes LORs
		 * with drivers and their TX paths.
		 */
		IEEE80211_NODE_UNLOCK(nt);
		if (ni != NULL) {
			mlmedebug(vap, mac, op, reason);
			if (reason == IEEE80211_STATUS_SUCCESS) {
				IEEE80211_SEND_MGMT(ni,
				    IEEE80211_FC0_SUBTYPE_AUTH, 2);
				/*
				 * For shared key auth, just continue the
				 * exchange.  Otherwise when 802.1x is not in
				 * use mark the port authorized at this point
				 * so traffic can flow.
				 */
				if (ni->ni_authmode != IEEE80211_AUTH_8021X &&
				    ni->ni_challenge == NULL)
				      ieee80211_node_authorize(ni);
			} else {
				vap->iv_stats.is_rx_acl++;
				ieee80211_send_error(ni, ni->ni_macaddr,
				    IEEE80211_FC0_SUBTYPE_AUTH, 2|(reason<<16));
				ieee80211_node_leave(ni);
			}
			ieee80211_free_node(ni);
		} else
			error = ENOENT;
		break;
	default:
		error = EINVAL;
		break;
	}
	return error;
}

struct scanlookup {
	const uint8_t *mac;
	int esslen;
	const uint8_t *essid;
	const struct ieee80211_scan_entry *se;
};

/*
 * Match mac address and any ssid.
 */
static void
mlmelookup(void *arg, const struct ieee80211_scan_entry *se)
{
	struct scanlookup *look = arg;

	if (!IEEE80211_ADDR_EQ(look->mac, se->se_macaddr))
		return;
	if (look->esslen != 0) {
		if (se->se_ssid[1] != look->esslen)
			return;
		if (memcmp(look->essid, se->se_ssid+2, look->esslen))
			return;
	}
	look->se = se;
}

static int
setmlme_assoc_sta(struct ieee80211vap *vap,
	const uint8_t mac[IEEE80211_ADDR_LEN], int ssid_len,
	const uint8_t ssid[IEEE80211_NWID_LEN])
{
	struct scanlookup lookup;

	KASSERT(vap->iv_opmode == IEEE80211_M_STA,
	    ("expected opmode STA not %s",
	    ieee80211_opmode_name[vap->iv_opmode]));

	/* NB: this is racey if roaming is !manual */
	lookup.se = NULL;
	lookup.mac = mac;
	lookup.esslen = ssid_len;
	lookup.essid = ssid;
	ieee80211_scan_iterate(vap, mlmelookup, &lookup);
	if (lookup.se == NULL)
		return ENOENT;
	mlmedebug(vap, mac, IEEE80211_MLME_ASSOC, 0);
	if (!ieee80211_sta_join(vap, lookup.se->se_chan, lookup.se))
		return EIO;		/* XXX unique but could be better */
	return 0;
}

static int
setmlme_assoc_adhoc(struct ieee80211vap *vap,
	const uint8_t mac[IEEE80211_ADDR_LEN], int ssid_len,
	const uint8_t ssid[IEEE80211_NWID_LEN])
{
	struct ieee80211_scan_req *sr;
	int error;

	KASSERT(vap->iv_opmode == IEEE80211_M_IBSS ||
	    vap->iv_opmode == IEEE80211_M_AHDEMO,
	    ("expected opmode IBSS or AHDEMO not %s",
	    ieee80211_opmode_name[vap->iv_opmode]));

	if (ssid_len == 0 || ssid_len > IEEE80211_NWID_LEN)
		return EINVAL;

	sr = IEEE80211_MALLOC(sizeof(*sr), M_TEMP,
	     IEEE80211_M_NOWAIT | IEEE80211_M_ZERO);
	if (sr == NULL)
		return ENOMEM;

	/* NB: IEEE80211_IOC_SSID call missing for ap_scan=2. */
	memset(vap->iv_des_ssid[0].ssid, 0, IEEE80211_NWID_LEN);
	vap->iv_des_ssid[0].len = ssid_len;
	memcpy(vap->iv_des_ssid[0].ssid, ssid, ssid_len);
	vap->iv_des_nssid = 1;

	sr->sr_flags = IEEE80211_IOC_SCAN_ACTIVE | IEEE80211_IOC_SCAN_ONCE;
	sr->sr_duration = IEEE80211_IOC_SCAN_FOREVER;
	memcpy(sr->sr_ssid[0].ssid, ssid, ssid_len);
	sr->sr_ssid[0].len = ssid_len;
	sr->sr_nssid = 1;

	error = ieee80211_scanreq(vap, sr);

	IEEE80211_FREE(sr, M_TEMP);
	return error;
}

static int
ieee80211_ioctl_setmlme(struct ieee80211vap *vap, struct ieee80211req *ireq)
{
	struct ieee80211req_mlme mlme;
	int error;

	if (ireq->i_len != sizeof(mlme))
		return EINVAL;
	error = copyin(ireq->i_data, &mlme, sizeof(mlme));
	if (error)
		return error;
	if  (vap->iv_opmode == IEEE80211_M_STA &&
	    mlme.im_op == IEEE80211_MLME_ASSOC)
#ifndef __HAIKU__
		   return setmlme_assoc_sta(vap, mlme.im_macaddr,
				   vap->iv_des_ssid[0].len, vap->iv_des_ssid[0].ssid);
#else
	   /* The wpa_supplicant (rightfully) supplies the SSID with this request.
		  However, with the code above it gets ignored and the desired SSID,
		  as set by IEEE80211_IOC_SSID is used instead. This still works if
		  the wpa_supplicant is the only client in use and IEEE80211_IOC_SSID
		  is never used, as then the mlme.im_macaddr is used as the only
		  identifying element. If we used IEEE80211_IOC_SSID before though,
		  for example because we joined an open network from the net_server
		  directly, there will always be a mismatch between the desired SSID
		  and the one the wpa_supplicant tries to associate with using this
		  MLME request. No association is then possible. As there is no
		  obvious reason why the request supplied SSID shouldn't be used, we
		  simply do so. */
		return setmlme_assoc_sta(vap, mlme.im_macaddr,
			mlme.im_ssid_len, mlme.im_ssid);
#endif
	else if ((vap->iv_opmode == IEEE80211_M_IBSS ||
	    vap->iv_opmode == IEEE80211_M_AHDEMO) &&
	    mlme.im_op == IEEE80211_MLME_ASSOC)
		return setmlme_assoc_adhoc(vap, mlme.im_macaddr,
		    mlme.im_ssid_len, mlme.im_ssid);
	else
		return setmlme_common(vap, mlme.im_op,
		    mlme.im_macaddr, mlme.im_reason);
}

static int
ieee80211_ioctl_macmac(struct ieee80211vap *vap, struct ieee80211req *ireq)
{
	uint8_t mac[IEEE80211_ADDR_LEN];
	const struct ieee80211_aclator *acl = vap->iv_acl;
	int error;

	if (ireq->i_len != sizeof(mac))
		return EINVAL;
	error = copyin(ireq->i_data, mac, ireq->i_len);
	if (error)
		return error;
	if (acl == NULL) {
		acl = ieee80211_aclator_get("mac");
		if (acl == NULL || !acl->iac_attach(vap))
			return EINVAL;
		vap->iv_acl = acl;
	}
	if (ireq->i_type == IEEE80211_IOC_ADDMAC)
		acl->iac_add(vap, mac);
	else
		acl->iac_remove(vap, mac);
	return 0;
}

static int
ieee80211_ioctl_setmaccmd(struct ieee80211vap *vap, struct ieee80211req *ireq)
{
	const struct ieee80211_aclator *acl = vap->iv_acl;

	switch (ireq->i_val) {
	case IEEE80211_MACCMD_POLICY_OPEN:
	case IEEE80211_MACCMD_POLICY_ALLOW:
	case IEEE80211_MACCMD_POLICY_DENY:
	case IEEE80211_MACCMD_POLICY_RADIUS:
		if (acl == NULL) {
			acl = ieee80211_aclator_get("mac");
			if (acl == NULL || !acl->iac_attach(vap))
				return EINVAL;
			vap->iv_acl = acl;
		}
		acl->iac_setpolicy(vap, ireq->i_val);
		break;
	case IEEE80211_MACCMD_FLUSH:
		if (acl != NULL)
			acl->iac_flush(vap);
		/* NB: silently ignore when not in use */
		break;
	case IEEE80211_MACCMD_DETACH:
		if (acl != NULL) {
			vap->iv_acl = NULL;
			acl->iac_detach(vap);
		}
		break;
	default:
		if (acl == NULL)
			return EINVAL;
		else
			return acl->iac_setioctl(vap, ireq);
	}
	return 0;
}

static int
ieee80211_ioctl_setchanlist(struct ieee80211vap *vap, struct ieee80211req *ireq)
{
	struct ieee80211com *ic = vap->iv_ic;
	uint8_t *chanlist, *list;
	int i, nchan, maxchan, error;

	if (ireq->i_len > sizeof(ic->ic_chan_active))
		ireq->i_len = sizeof(ic->ic_chan_active);
	list = IEEE80211_MALLOC(ireq->i_len + IEEE80211_CHAN_BYTES, M_TEMP,
	    IEEE80211_M_NOWAIT | IEEE80211_M_ZERO);
	if (list == NULL)
		return ENOMEM;
	error = copyin(ireq->i_data, list, ireq->i_len);
	if (error) {
		IEEE80211_FREE(list, M_TEMP);
		return error;
	}
	nchan = 0;
	chanlist = list + ireq->i_len;		/* NB: zero'd already */
	maxchan = ireq->i_len * NBBY;
	for (i = 0; i < ic->ic_nchans; i++) {
		const struct ieee80211_channel *c = &ic->ic_channels[i];
		/*
		 * Calculate the intersection of the user list and the
		 * available channels so users can do things like specify
		 * 1-255 to get all available channels.
		 */
		if (c->ic_ieee < maxchan && isset(list, c->ic_ieee)) {
			setbit(chanlist, c->ic_ieee);
			nchan++;
		}
	}
	if (nchan == 0) {
		IEEE80211_FREE(list, M_TEMP);
		return EINVAL;
	}
	if (ic->ic_bsschan != IEEE80211_CHAN_ANYC &&	/* XXX */
	    isclr(chanlist, ic->ic_bsschan->ic_ieee))
		ic->ic_bsschan = IEEE80211_CHAN_ANYC;
	memcpy(ic->ic_chan_active, chanlist, IEEE80211_CHAN_BYTES);
	ieee80211_scan_flush(vap);
	IEEE80211_FREE(list, M_TEMP);
	return ENETRESET;
}

static int
ieee80211_ioctl_setstastats(struct ieee80211vap *vap, struct ieee80211req *ireq)
{
	struct ieee80211_node *ni;
	uint8_t macaddr[IEEE80211_ADDR_LEN];
	int error;

	/*
	 * NB: we could copyin ieee80211req_sta_stats so apps
	 *     could make selective changes but that's overkill;
	 *     just clear all stats for now.
	 */
	if (ireq->i_len < IEEE80211_ADDR_LEN)
		return EINVAL;
	error = copyin(ireq->i_data, macaddr, IEEE80211_ADDR_LEN);
	if (error != 0)
		return error;
	ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, macaddr);
	if (ni == NULL)
		return ENOENT;
	/* XXX require ni_vap == vap? */
	memset(&ni->ni_stats, 0, sizeof(ni->ni_stats));
	ieee80211_free_node(ni);
	return 0;
}

static int
ieee80211_ioctl_setstatxpow(struct ieee80211vap *vap, struct ieee80211req *ireq)
{
	struct ieee80211_node *ni;
	struct ieee80211req_sta_txpow txpow;
	int error;

	if (ireq->i_len != sizeof(txpow))
		return EINVAL;
	error = copyin(ireq->i_data, &txpow, sizeof(txpow));
	if (error != 0)
		return error;
	ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, txpow.it_macaddr);
	if (ni == NULL)
		return ENOENT;
	ni->ni_txpower = txpow.it_txpow;
	ieee80211_free_node(ni);
	return error;
}

static int
ieee80211_ioctl_setwmeparam(struct ieee80211vap *vap, struct ieee80211req *ireq)
{
	struct ieee80211com *ic = vap->iv_ic;
	struct ieee80211_wme_state *wme = &ic->ic_wme;
	struct wmeParams *wmep, *chanp;
	int isbss, ac, aggrmode;

	if ((ic->ic_caps & IEEE80211_C_WME) == 0)
		return EOPNOTSUPP;

	isbss = (ireq->i_len & IEEE80211_WMEPARAM_BSS);
	ac = (ireq->i_len & IEEE80211_WMEPARAM_VAL);
	aggrmode = (wme->wme_flags & WME_F_AGGRMODE);
	if (ac >= WME_NUM_AC)
		ac = WME_AC_BE;
	if (isbss) {
		chanp = &wme->wme_bssChanParams.cap_wmeParams[ac];
		wmep = &wme->wme_wmeBssChanParams.cap_wmeParams[ac];
	} else {
		chanp = &wme->wme_chanParams.cap_wmeParams[ac];
		wmep = &wme->wme_wmeChanParams.cap_wmeParams[ac];
	}
	switch (ireq->i_type) {
	case IEEE80211_IOC_WME_CWMIN:		/* WME: CWmin */
		wmep->wmep_logcwmin = ireq->i_val;
		if (!isbss || !aggrmode)
			chanp->wmep_logcwmin = ireq->i_val;
		break;
	case IEEE80211_IOC_WME_CWMAX:		/* WME: CWmax */
		wmep->wmep_logcwmax = ireq->i_val;
		if (!isbss || !aggrmode)
			chanp->wmep_logcwmax = ireq->i_val;
		break;
	case IEEE80211_IOC_WME_AIFS:		/* WME: AIFS */
		wmep->wmep_aifsn = ireq->i_val;
		if (!isbss || !aggrmode)
			chanp->wmep_aifsn = ireq->i_val;
		break;
	case IEEE80211_IOC_WME_TXOPLIMIT:	/* WME: txops limit */
		wmep->wmep_txopLimit = ireq->i_val;
		if (!isbss || !aggrmode)
			chanp->wmep_txopLimit = ireq->i_val;
		break;
	case IEEE80211_IOC_WME_ACM:		/* WME: ACM (bss only) */
		wmep->wmep_acm = ireq->i_val;
		if (!aggrmode)
			chanp->wmep_acm = ireq->i_val;
		break;
	case IEEE80211_IOC_WME_ACKPOLICY:	/* WME: ACK policy (!bss only)*/
		wmep->wmep_noackPolicy = chanp->wmep_noackPolicy =
			(ireq->i_val) == 0;
		break;
	}
	ieee80211_wme_updateparams(vap);
	return 0;
}

static int
find11gchannel(struct ieee80211com *ic, int start, int freq)
{
	const struct ieee80211_channel *c;
	int i;

	for (i = start+1; i < ic->ic_nchans; i++) {
		c = &ic->ic_channels[i];
		if (c->ic_freq == freq && IEEE80211_IS_CHAN_ANYG(c))
			return 1;
	}
	/* NB: should not be needed but in case things are mis-sorted */
	for (i = 0; i < start; i++) {
		c = &ic->ic_channels[i];
		if (c->ic_freq == freq && IEEE80211_IS_CHAN_ANYG(c))
			return 1;
	}
	return 0;
}

static struct ieee80211_channel *
findchannel(struct ieee80211com *ic, int ieee, int mode)
{
	static const u_int chanflags[IEEE80211_MODE_MAX] = {
	    [IEEE80211_MODE_AUTO]	= 0,
	    [IEEE80211_MODE_11A]	= IEEE80211_CHAN_A,
	    [IEEE80211_MODE_11B]	= IEEE80211_CHAN_B,
	    [IEEE80211_MODE_11G]	= IEEE80211_CHAN_G,
	    [IEEE80211_MODE_FH]		= IEEE80211_CHAN_FHSS,
	    [IEEE80211_MODE_TURBO_A]	= IEEE80211_CHAN_108A,
	    [IEEE80211_MODE_TURBO_G]	= IEEE80211_CHAN_108G,
	    [IEEE80211_MODE_STURBO_A]	= IEEE80211_CHAN_STURBO,
	    [IEEE80211_MODE_HALF]	= IEEE80211_CHAN_HALF,
	    [IEEE80211_MODE_QUARTER]	= IEEE80211_CHAN_QUARTER,
	    /* NB: handled specially below */
	    [IEEE80211_MODE_11NA]	= IEEE80211_CHAN_A,
	    [IEEE80211_MODE_11NG]	= IEEE80211_CHAN_G,
	    [IEEE80211_MODE_VHT_5GHZ]	= IEEE80211_CHAN_A,
	    [IEEE80211_MODE_VHT_2GHZ]	= IEEE80211_CHAN_G,
	};
	u_int modeflags;
	int i;

	modeflags = chanflags[mode];
	for (i = 0; i < ic->ic_nchans; i++) {
		struct ieee80211_channel *c = &ic->ic_channels[i];

		if (c->ic_ieee != ieee)
			continue;
		if (mode == IEEE80211_MODE_AUTO) {
			/* ignore turbo channels for autoselect */
			if (IEEE80211_IS_CHAN_TURBO(c))
				continue;
			/*
			 * XXX special-case 11b/g channels so we
			 *     always select the g channel if both
			 *     are present.
			 * XXX prefer HT to non-HT?
			 */
			if (!IEEE80211_IS_CHAN_B(c) ||
			    !find11gchannel(ic, i, c->ic_freq))
				return c;
		} else {
			/* must check VHT specifically */
			if ((mode == IEEE80211_MODE_VHT_5GHZ ||
			    mode == IEEE80211_MODE_VHT_2GHZ) &&
			    !IEEE80211_IS_CHAN_VHT(c))
				continue;

			/*
			 * Must check HT specially - only match on HT,
			 * not HT+VHT channels
			 */
			if ((mode == IEEE80211_MODE_11NA ||
			    mode == IEEE80211_MODE_11NG) &&
			    !IEEE80211_IS_CHAN_HT(c))
				continue;

			if ((mode == IEEE80211_MODE_11NA ||
			    mode == IEEE80211_MODE_11NG) &&
			    IEEE80211_IS_CHAN_VHT(c))
				continue;

			/* Check that the modeflags above match */
			if ((c->ic_flags & modeflags) == modeflags)
				return c;
		}
	}
	return NULL;
}

/*
 * Check the specified against any desired mode (aka netband).
 * This is only used (presently) when operating in hostap mode
 * to enforce consistency.
 */
static int
check_mode_consistency(const struct ieee80211_channel *c, int mode)
{
	KASSERT(c != IEEE80211_CHAN_ANYC, ("oops, no channel"));

	switch (mode) {
	case IEEE80211_MODE_11B:
		return (IEEE80211_IS_CHAN_B(c));
	case IEEE80211_MODE_11G:
		return (IEEE80211_IS_CHAN_ANYG(c) && !IEEE80211_IS_CHAN_HT(c));
	case IEEE80211_MODE_11A:
		return (IEEE80211_IS_CHAN_A(c) && !IEEE80211_IS_CHAN_HT(c));
	case IEEE80211_MODE_STURBO_A:
		return (IEEE80211_IS_CHAN_STURBO(c));
	case IEEE80211_MODE_11NA:
		return (IEEE80211_IS_CHAN_HTA(c));
	case IEEE80211_MODE_11NG:
		return (IEEE80211_IS_CHAN_HTG(c));
	}
	return 1;

}

/*
 * Common code to set the current channel.  If the device
 * is up and running this may result in an immediate channel
 * change or a kick of the state machine.
 */
static int
setcurchan(struct ieee80211vap *vap, struct ieee80211_channel *c)
{
	struct ieee80211com *ic = vap->iv_ic;
	int error;

	if (c != IEEE80211_CHAN_ANYC) {
		if (IEEE80211_IS_CHAN_RADAR(c))
			return EBUSY;	/* XXX better code? */
		if (vap->iv_opmode == IEEE80211_M_HOSTAP) {
			if (IEEE80211_IS_CHAN_NOHOSTAP(c))
				return EINVAL;
			if (!check_mode_consistency(c, vap->iv_des_mode))
				return EINVAL;
		} else if (vap->iv_opmode == IEEE80211_M_IBSS) {
			if (IEEE80211_IS_CHAN_NOADHOC(c))
				return EINVAL;
		}
		if ((vap->iv_state == IEEE80211_S_RUN || vap->iv_state == IEEE80211_S_SLEEP) &&
		    vap->iv_bss->ni_chan == c)
			return 0;	/* NB: nothing to do */
	}
	vap->iv_des_chan = c;

	error = 0;
	if (vap->iv_opmode == IEEE80211_M_MONITOR &&
	    vap->iv_des_chan != IEEE80211_CHAN_ANYC) {
		/*
		 * Monitor mode can switch directly.
		 */
		if (IFNET_IS_UP_RUNNING(vap->iv_ifp)) {
			/* XXX need state machine for other vap's to follow */
			ieee80211_setcurchan(ic, vap->iv_des_chan);
			vap->iv_bss->ni_chan = ic->ic_curchan;
		} else {
			ic->ic_curchan = vap->iv_des_chan;
			ic->ic_rt = ieee80211_get_ratetable(ic->ic_curchan);
		}
	} else {
		/*
		 * Need to go through the state machine in case we
		 * need to reassociate or the like.  The state machine
		 * will pickup the desired channel and avoid scanning.
		 */
		if (IS_UP_AUTO(vap))
			ieee80211_new_state(vap, IEEE80211_S_SCAN, 0);
		else if (vap->iv_des_chan != IEEE80211_CHAN_ANYC) {
			/*
			 * When not up+running and a real channel has
			 * been specified fix the current channel so
			 * there is immediate feedback; e.g. via ifconfig.
			 */
			ic->ic_curchan = vap->iv_des_chan;
			ic->ic_rt = ieee80211_get_ratetable(ic->ic_curchan);
		}
	}
	return error;
}

/*
 * Old api for setting the current channel; this is
 * deprecated because channel numbers are ambiguous.
 */
static int
ieee80211_ioctl_setchannel(struct ieee80211vap *vap,
	const struct ieee80211req *ireq)
{
	struct ieee80211com *ic = vap->iv_ic;
	struct ieee80211_channel *c;

	/* XXX 0xffff overflows 16-bit signed */
	if (ireq->i_val == 0 ||
	    ireq->i_val == (int16_t) IEEE80211_CHAN_ANY) {
		c = IEEE80211_CHAN_ANYC;
	} else {
		struct ieee80211_channel *c2;

		c = findchannel(ic, ireq->i_val, vap->iv_des_mode);
		if (c == NULL) {
			c = findchannel(ic, ireq->i_val,
				IEEE80211_MODE_AUTO);
			if (c == NULL)
				return EINVAL;
		}

		/*
		 * Fine tune channel selection based on desired mode:
		 *   if 11b is requested, find the 11b version of any
		 *      11g channel returned,
		 *   if static turbo, find the turbo version of any
		 *	11a channel return,
		 *   if 11na is requested, find the ht version of any
		 *      11a channel returned,
		 *   if 11ng is requested, find the ht version of any
		 *      11g channel returned,
		 *   if 11ac is requested, find the 11ac version
		 *      of any 11a/11na channel returned,
		 *   (TBD) 11acg (2GHz VHT)
		 *   otherwise we should be ok with what we've got.
		 */
		switch (vap->iv_des_mode) {
		case IEEE80211_MODE_11B:
			if (IEEE80211_IS_CHAN_ANYG(c)) {
				c2 = findchannel(ic, ireq->i_val,
					IEEE80211_MODE_11B);
				/* NB: should not happen, =>'s 11g w/o 11b */
				if (c2 != NULL)
					c = c2;
			}
			break;
		case IEEE80211_MODE_TURBO_A:
			if (IEEE80211_IS_CHAN_A(c)) {
				c2 = findchannel(ic, ireq->i_val,
					IEEE80211_MODE_TURBO_A);
				if (c2 != NULL)
					c = c2;
			}
			break;
		case IEEE80211_MODE_11NA:
			if (IEEE80211_IS_CHAN_A(c)) {
				c2 = findchannel(ic, ireq->i_val,
					IEEE80211_MODE_11NA);
				if (c2 != NULL)
					c = c2;
			}
			break;
		case IEEE80211_MODE_11NG:
			if (IEEE80211_IS_CHAN_ANYG(c)) {
				c2 = findchannel(ic, ireq->i_val,
					IEEE80211_MODE_11NG);
				if (c2 != NULL)
					c = c2;
			}
			break;
		case IEEE80211_MODE_VHT_2GHZ:
			printf("%s: TBD\n", __func__);
			break;
		case IEEE80211_MODE_VHT_5GHZ:
			if (IEEE80211_IS_CHAN_A(c)) {
				c2 = findchannel(ic, ireq->i_val,
					IEEE80211_MODE_VHT_5GHZ);
				if (c2 != NULL)
					c = c2;
			}
			break;
		default:		/* NB: no static turboG */
			break;
		}
	}
	return setcurchan(vap, c);
}

/*
 * New/current api for setting the current channel; a complete
 * channel description is provide so there is no ambiguity in
 * identifying the channel.
 */
static int
ieee80211_ioctl_setcurchan(struct ieee80211vap *vap,
	const struct ieee80211req *ireq)
{
	struct ieee80211com *ic = vap->iv_ic;
	struct ieee80211_channel chan, *c;
	int error;

	if (ireq->i_len != sizeof(chan))
		return EINVAL;
	error = copyin(ireq->i_data, &chan, sizeof(chan));
	if (error != 0)
		return error;

	/* XXX 0xffff overflows 16-bit signed */
	if (chan.ic_freq == 0 || chan.ic_freq == IEEE80211_CHAN_ANY) {
		c = IEEE80211_CHAN_ANYC;
	} else {
		c = ieee80211_find_channel(ic, chan.ic_freq, chan.ic_flags);
		if (c == NULL)
			return EINVAL;
	}
	return setcurchan(vap, c);
}

static int
ieee80211_ioctl_setregdomain(struct ieee80211vap *vap,
	const struct ieee80211req *ireq)
{
	struct ieee80211_regdomain_req *reg;
	int nchans, error;

	nchans = 1 + ((ireq->i_len - sizeof(struct ieee80211_regdomain_req)) /
	    sizeof(struct ieee80211_channel));
	if (!(1 <= nchans && nchans <= IEEE80211_CHAN_MAX)) {
		IEEE80211_DPRINTF(vap, IEEE80211_MSG_IOCTL,
		    "%s: bad # chans, i_len %d nchans %d\n", __func__,
		    ireq->i_len, nchans);
		return EINVAL;
	}
	reg = (struct ieee80211_regdomain_req *)
	    IEEE80211_MALLOC(IEEE80211_REGDOMAIN_SIZE(nchans), M_TEMP,
	      IEEE80211_M_NOWAIT | IEEE80211_M_ZERO);
	if (reg == NULL) {
		IEEE80211_DPRINTF(vap, IEEE80211_MSG_IOCTL,
		    "%s: no memory, nchans %d\n", __func__, nchans);
		return ENOMEM;
	}
	error = copyin(ireq->i_data, reg, IEEE80211_REGDOMAIN_SIZE(nchans));
	if (error == 0) {
		/* NB: validate inline channel count against storage size */
		if (reg->chaninfo.ic_nchans != nchans) {
			IEEE80211_DPRINTF(vap, IEEE80211_MSG_IOCTL,
			    "%s: chan cnt mismatch, %d != %d\n", __func__,
				reg->chaninfo.ic_nchans, nchans);
			error = EINVAL;
		} else
			error = ieee80211_setregdomain(vap, reg);
	}
	IEEE80211_FREE(reg, M_TEMP);

	return (error == 0 ? ENETRESET : error);
}

static int
checkrate(const struct ieee80211_rateset *rs, int rate)
{
	int i;

	if (rate == IEEE80211_FIXED_RATE_NONE)
		return 1;
	for (i = 0; i < rs->rs_nrates; i++)
		if ((rs->rs_rates[i] & IEEE80211_RATE_VAL) == rate)
			return 1;
	return 0;
}

static int
checkmcs(const struct ieee80211_htrateset *rs, int mcs)
{
	int rate_val = IEEE80211_RV(mcs);
	int i;

	if (mcs == IEEE80211_FIXED_RATE_NONE)
		return 1;
	if ((mcs & IEEE80211_RATE_MCS) == 0)	/* MCS always have 0x80 set */
		return 0;
	for (i = 0; i < rs->rs_nrates; i++)
		if (IEEE80211_RV(rs->rs_rates[i]) == rate_val)
			return 1;
	return 0;
}

static int
ieee80211_ioctl_setroam(struct ieee80211vap *vap,
        const struct ieee80211req *ireq)
{
	struct ieee80211com *ic = vap->iv_ic;
	struct ieee80211_roamparams_req *parms;
	struct ieee80211_roamparam *src, *dst;
	const struct ieee80211_htrateset *rs_ht;
	const struct ieee80211_rateset *rs;
	int changed, error, mode, is11n, nmodes;

	if (ireq->i_len != sizeof(vap->iv_roamparms))
		return EINVAL;

	parms = IEEE80211_MALLOC(sizeof(*parms), M_TEMP,
	    IEEE80211_M_NOWAIT | IEEE80211_M_ZERO);
	if (parms == NULL)
		return ENOMEM;

	error = copyin(ireq->i_data, parms, ireq->i_len);
	if (error != 0)
		goto fail;

	changed = 0;
	nmodes = IEEE80211_MODE_MAX;

	/* validate parameters and check if anything changed */
	for (mode = IEEE80211_MODE_11A; mode < nmodes; mode++) {
		if (isclr(ic->ic_modecaps, mode))
			continue;
		src = &parms->params[mode];
		dst = &vap->iv_roamparms[mode];
		rs = &ic->ic_sup_rates[mode];	/* NB: 11n maps to legacy */
		rs_ht = &ic->ic_sup_htrates;
		is11n = (mode == IEEE80211_MODE_11NA ||
			 mode == IEEE80211_MODE_11NG);
		/* XXX TODO: 11ac */
		if (src->rate != dst->rate) {
			if (!checkrate(rs, src->rate) &&
			    (!is11n || !checkmcs(rs_ht, src->rate))) {
				error = EINVAL;
				goto fail;
			}
			changed++;
		}
		if (src->rssi != dst->rssi)
			changed++;
	}
	if (changed) {
		/*
		 * Copy new parameters in place and notify the
		 * driver so it can push state to the device.
		 */
		/* XXX locking? */
		for (mode = IEEE80211_MODE_11A; mode < nmodes; mode++) {
			if (isset(ic->ic_modecaps, mode))
				vap->iv_roamparms[mode] = parms->params[mode];
		}

		if (vap->iv_roaming == IEEE80211_ROAMING_DEVICE)
			error = ERESTART;
	}

fail:	IEEE80211_FREE(parms, M_TEMP);
	return error;
}

static int
ieee80211_ioctl_settxparams(struct ieee80211vap *vap,
	const struct ieee80211req *ireq)
{
	struct ieee80211com *ic = vap->iv_ic;
	struct ieee80211_txparams_req parms;	/* XXX stack use? */
	struct ieee80211_txparam *src, *dst;
	const struct ieee80211_htrateset *rs_ht;
	const struct ieee80211_rateset *rs;
	int error, mode, changed, is11n, nmodes;

	/* NB: accept short requests for backwards compat */
	if (ireq->i_len > sizeof(parms))
		return EINVAL;
	error = copyin(ireq->i_data, &parms, ireq->i_len);
	if (error != 0)
		return error;
	nmodes = ireq->i_len / sizeof(struct ieee80211_txparam);
	changed = 0;
	/* validate parameters and check if anything changed */
	for (mode = IEEE80211_MODE_11A; mode < nmodes; mode++) {
		if (isclr(ic->ic_modecaps, mode))
			continue;
		src = &parms.params[mode];
		dst = &vap->iv_txparms[mode];
		rs = &ic->ic_sup_rates[mode];	/* NB: 11n maps to legacy */
		rs_ht = &ic->ic_sup_htrates;
		is11n = (mode == IEEE80211_MODE_11NA ||
			 mode == IEEE80211_MODE_11NG);
		if (src->ucastrate != dst->ucastrate) {
			if (!checkrate(rs, src->ucastrate) &&
			    (!is11n || !checkmcs(rs_ht, src->ucastrate)))
				return EINVAL;
			changed++;
		}
		if (src->mcastrate != dst->mcastrate) {
			if (!checkrate(rs, src->mcastrate) &&
			    (!is11n || !checkmcs(rs_ht, src->mcastrate)))
				return EINVAL;
			changed++;
		}
		if (src->mgmtrate != dst->mgmtrate) {
			if (!checkrate(rs, src->mgmtrate) &&
			    (!is11n || !checkmcs(rs_ht, src->mgmtrate)))
				return EINVAL;
			changed++;
		}
		if (src->maxretry != dst->maxretry)	/* NB: no bounds */
			changed++;
	}
	if (changed) {
		/*
		 * Copy new parameters in place and notify the
		 * driver so it can push state to the device.
		 */
		for (mode = IEEE80211_MODE_11A; mode < nmodes; mode++) {
			if (isset(ic->ic_modecaps, mode))
				vap->iv_txparms[mode] = parms.params[mode];
		}
		/* XXX could be more intelligent,
		   e.g. don't reset if setting not being used */
		return ENETRESET;
	}
	return 0;
}

/*
 * Application Information Element support.
 */
static int
setappie(struct ieee80211_appie **aie, const struct ieee80211req *ireq)
{
	struct ieee80211_appie *app = *aie;
	struct ieee80211_appie *napp;
	int error;

	if (ireq->i_len == 0) {		/* delete any existing ie */
		if (app != NULL) {
			*aie = NULL;	/* XXX racey */
			IEEE80211_FREE(app, M_80211_NODE_IE);
		}
		return 0;
	}
	if (!(2 <= ireq->i_len && ireq->i_len <= IEEE80211_MAX_APPIE))
		return EINVAL;
	/*
	 * Allocate a new appie structure and copy in the user data.
	 * When done swap in the new structure.  Note that we do not
	 * guard against users holding a ref to the old structure;
	 * this must be handled outside this code.
	 *
	 * XXX bad bad bad
	 */
	napp = (struct ieee80211_appie *) IEEE80211_MALLOC(
	    sizeof(struct ieee80211_appie) + ireq->i_len, M_80211_NODE_IE,
	    IEEE80211_M_NOWAIT);
	if (napp == NULL)
		return ENOMEM;
	/* XXX holding ic lock */
	error = copyin(ireq->i_data, napp->ie_data, ireq->i_len);
	if (error) {
		IEEE80211_FREE(napp, M_80211_NODE_IE);
		return error;
	}
	napp->ie_len = ireq->i_len;
	*aie = napp;
	if (app != NULL)
		IEEE80211_FREE(app, M_80211_NODE_IE);
	return 0;
}

static void
setwparsnie(struct ieee80211vap *vap, uint8_t *ie, int space)
{
	/* validate data is present as best we can */
	if (space == 0 || 2+ie[1] > space)
		return;
	if (ie[0] == IEEE80211_ELEMID_VENDOR)
		vap->iv_wpa_ie = ie;
	else if (ie[0] == IEEE80211_ELEMID_RSN)
		vap->iv_rsn_ie = ie;
}

static int
ieee80211_ioctl_setappie_locked(struct ieee80211vap *vap,
	const struct ieee80211req *ireq, int fc0)
{
	int error;

	IEEE80211_LOCK_ASSERT(vap->iv_ic);

	switch (fc0 & IEEE80211_FC0_SUBTYPE_MASK) {
	case IEEE80211_FC0_SUBTYPE_BEACON:
		if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
		    vap->iv_opmode != IEEE80211_M_IBSS) {
			error = EINVAL;
			break;
		}
		error = setappie(&vap->iv_appie_beacon, ireq);
		if (error == 0)
			ieee80211_beacon_notify(vap, IEEE80211_BEACON_APPIE);
		break;
	case IEEE80211_FC0_SUBTYPE_PROBE_RESP:
		error = setappie(&vap->iv_appie_proberesp, ireq);
		break;
	case IEEE80211_FC0_SUBTYPE_ASSOC_RESP:
		if (vap->iv_opmode == IEEE80211_M_HOSTAP)
			error = setappie(&vap->iv_appie_assocresp, ireq);
		else
			error = EINVAL;
		break;
	case IEEE80211_FC0_SUBTYPE_PROBE_REQ:
		error = setappie(&vap->iv_appie_probereq, ireq);
		break;
	case IEEE80211_FC0_SUBTYPE_ASSOC_REQ:
		if (vap->iv_opmode == IEEE80211_M_STA)
			error = setappie(&vap->iv_appie_assocreq, ireq);
		else
			error = EINVAL;
		break;
	case (IEEE80211_APPIE_WPA & IEEE80211_FC0_SUBTYPE_MASK):
		error = setappie(&vap->iv_appie_wpa, ireq);
		if (error == 0) {
			/*
			 * Must split single blob of data into separate
			 * WPA and RSN ie's because they go in different
			 * locations in the mgt frames.
			 * XXX use IEEE80211_IOC_WPA2 so user code does split
			 */
			vap->iv_wpa_ie = NULL;
			vap->iv_rsn_ie = NULL;
			if (vap->iv_appie_wpa != NULL) {
				struct ieee80211_appie *appie =
				    vap->iv_appie_wpa;
				uint8_t *data = appie->ie_data;

				/* XXX ie length validate is painful, cheat */
				setwparsnie(vap, data, appie->ie_len);
				setwparsnie(vap, data + 2 + data[1],
				    appie->ie_len - (2 + data[1]));
			}
			if (vap->iv_opmode == IEEE80211_M_HOSTAP ||
			    vap->iv_opmode == IEEE80211_M_IBSS) {
				/*
				 * Must rebuild beacon frame as the update
				 * mechanism doesn't handle WPA/RSN ie's.
				 * Could extend it but it doesn't normally
				 * change; this is just to deal with hostapd
				 * plumbing the ie after the interface is up.
				 */
				error = ENETRESET;
			}
		}
		break;
	default:
		error = EINVAL;
		break;
	}
	return error;
}

static int
ieee80211_ioctl_setappie(struct ieee80211vap *vap,
	const struct ieee80211req *ireq)
{
	struct ieee80211com *ic = vap->iv_ic;
	int error;
	uint8_t fc0;

	fc0 = ireq->i_val & 0xff;
	if ((fc0 & IEEE80211_FC0_TYPE_MASK) != IEEE80211_FC0_TYPE_MGT)
		return EINVAL;
	/* NB: could check iv_opmode and reject but hardly worth the effort */
	IEEE80211_LOCK(ic);
	error = ieee80211_ioctl_setappie_locked(vap, ireq, fc0);
	IEEE80211_UNLOCK(ic);
	return error;
}

static int
ieee80211_ioctl_chanswitch(struct ieee80211vap *vap, struct ieee80211req *ireq)
{
	struct ieee80211com *ic = vap->iv_ic;
	struct ieee80211_chanswitch_req csr;
	struct ieee80211_channel *c;
	int error;

	if (ireq->i_len != sizeof(csr))
		return EINVAL;
	error = copyin(ireq->i_data, &csr, sizeof(csr));
	if (error != 0)
		return error;
	/* XXX adhoc mode not supported */
	if (vap->iv_opmode != IEEE80211_M_HOSTAP ||
	    (vap->iv_flags & IEEE80211_F_DOTH) == 0)
		return EOPNOTSUPP;
	c = ieee80211_find_channel(ic,
	    csr.csa_chan.ic_freq, csr.csa_chan.ic_flags);
	if (c == NULL)
		return ENOENT;
	IEEE80211_LOCK(ic);
	if ((ic->ic_flags & IEEE80211_F_CSAPENDING) == 0)
		ieee80211_csa_startswitch(ic, c, csr.csa_mode, csr.csa_count);
	else if (csr.csa_count == 0)
		ieee80211_csa_cancelswitch(ic);
	else
		error = EBUSY;
	IEEE80211_UNLOCK(ic);
	return error;
}

static int
ieee80211_scanreq(struct ieee80211vap *vap, struct ieee80211_scan_req *sr)
{
#define	IEEE80211_IOC_SCAN_FLAGS \
	(IEEE80211_IOC_SCAN_NOPICK | IEEE80211_IOC_SCAN_ACTIVE | \
	 IEEE80211_IOC_SCAN_PICK1ST | IEEE80211_IOC_SCAN_BGSCAN | \
	 IEEE80211_IOC_SCAN_ONCE | IEEE80211_IOC_SCAN_NOBCAST | \
	 IEEE80211_IOC_SCAN_NOJOIN | IEEE80211_IOC_SCAN_FLUSH | \
	 IEEE80211_IOC_SCAN_CHECK)
	struct ieee80211com *ic = vap->iv_ic;
	int error, i;

	/* convert duration */
	if (sr->sr_duration == IEEE80211_IOC_SCAN_FOREVER)
		sr->sr_duration = IEEE80211_SCAN_FOREVER;
	else {
		if (sr->sr_duration < IEEE80211_IOC_SCAN_DURATION_MIN ||
		    sr->sr_duration > IEEE80211_IOC_SCAN_DURATION_MAX)
			return EINVAL;
		sr->sr_duration = msecs_to_ticks(sr->sr_duration);
	}
	/* convert min/max channel dwell */
	if (sr->sr_mindwell != 0)
		sr->sr_mindwell = msecs_to_ticks(sr->sr_mindwell);
	if (sr->sr_maxdwell != 0)
		sr->sr_maxdwell = msecs_to_ticks(sr->sr_maxdwell);
	/* NB: silently reduce ssid count to what is supported */
	if (sr->sr_nssid > IEEE80211_SCAN_MAX_SSID)
		sr->sr_nssid = IEEE80211_SCAN_MAX_SSID;
	for (i = 0; i < sr->sr_nssid; i++)
		if (sr->sr_ssid[i].len > IEEE80211_NWID_LEN)
			return EINVAL;
	/* cleanse flags just in case, could reject if invalid flags */
	sr->sr_flags &= IEEE80211_IOC_SCAN_FLAGS;
	/*
	 * Add an implicit NOPICK if the vap is not marked UP.  This
	 * allows applications to scan without joining a bss (or picking
	 * a channel and setting up a bss) and without forcing manual
	 * roaming mode--you just need to mark the parent device UP.
	 */
	if ((vap->iv_ifp->if_flags & IFF_UP) == 0)
		sr->sr_flags |= IEEE80211_IOC_SCAN_NOPICK;

	IEEE80211_DPRINTF(vap, IEEE80211_MSG_SCAN,
	    "%s: vap %p iv_state %#x (%s) flags 0x%x%s "
	    "duration 0x%x mindwell %u maxdwell %u nssid %d\n",
	    __func__, vap, vap->iv_state, ieee80211_state_name[vap->iv_state],
	    sr->sr_flags,
	    (vap->iv_ifp->if_flags & IFF_UP) == 0 ? " (!IFF_UP)" : "",
	    sr->sr_duration, sr->sr_mindwell, sr->sr_maxdwell, sr->sr_nssid);
	/*
	 * If we are in INIT state then the driver has never had a chance
	 * to setup hardware state to do a scan; we must use the state
	 * machine to get us up to the SCAN state but once we reach SCAN
	 * state we then want to use the supplied params.  Stash the
	 * parameters in the vap and mark IEEE80211_FEXT_SCANREQ; the
	 * state machines will recognize this and use the stashed params
	 * to issue the scan request.
	 *
	 * Otherwise just invoke the scan machinery directly.
	 */
	IEEE80211_LOCK(ic);
	if (ic->ic_nrunning == 0) {
		IEEE80211_UNLOCK(ic);
		return ENXIO;
	}

	if (vap->iv_state == IEEE80211_S_INIT) {
		/* NB: clobbers previous settings */
		vap->iv_scanreq_flags = sr->sr_flags;
		vap->iv_scanreq_duration = sr->sr_duration;
		vap->iv_scanreq_nssid = sr->sr_nssid;
		for (i = 0; i < sr->sr_nssid; i++) {
			vap->iv_scanreq_ssid[i].len = sr->sr_ssid[i].len;
			memcpy(vap->iv_scanreq_ssid[i].ssid,
			    sr->sr_ssid[i].ssid, sr->sr_ssid[i].len);
		}
		vap->iv_flags_ext |= IEEE80211_FEXT_SCANREQ;
		IEEE80211_UNLOCK(ic);
		ieee80211_new_state(vap, IEEE80211_S_SCAN, 0);
	} else {
		vap->iv_flags_ext &= ~IEEE80211_FEXT_SCANREQ;
		IEEE80211_UNLOCK(ic);
		if (sr->sr_flags & IEEE80211_IOC_SCAN_CHECK) {
			error = ieee80211_check_scan(vap, sr->sr_flags,
			    sr->sr_duration, sr->sr_mindwell, sr->sr_maxdwell,
			    sr->sr_nssid,
			    /* NB: cheat, we assume structures are compatible */
			    (const struct ieee80211_scan_ssid *) &sr->sr_ssid[0]);
		} else {
			error = ieee80211_start_scan(vap, sr->sr_flags,
			    sr->sr_duration, sr->sr_mindwell, sr->sr_maxdwell,
			    sr->sr_nssid,
			    /* NB: cheat, we assume structures are compatible */
			    (const struct ieee80211_scan_ssid *) &sr->sr_ssid[0]);
		}
		if (error == 0)
			return EINPROGRESS;
	}
	return 0;
#undef IEEE80211_IOC_SCAN_FLAGS
}

static int
ieee80211_ioctl_scanreq(struct ieee80211vap *vap, struct ieee80211req *ireq)
{
	struct ieee80211_scan_req *sr;
	int error;

	if (ireq->i_len != sizeof(*sr))
		return EINVAL;
	sr = IEEE80211_MALLOC(sizeof(*sr), M_TEMP,
	     IEEE80211_M_NOWAIT | IEEE80211_M_ZERO);
	if (sr == NULL)
		return ENOMEM;
	error = copyin(ireq->i_data, sr, sizeof(*sr));
	if (error != 0)
		goto bad;
	error = ieee80211_scanreq(vap, sr);
bad:
	IEEE80211_FREE(sr, M_TEMP);
	return error;
}

static int
ieee80211_ioctl_setstavlan(struct ieee80211vap *vap, struct ieee80211req *ireq)
{
	struct ieee80211_node *ni;
	struct ieee80211req_sta_vlan vlan;
	int error;

	if (ireq->i_len != sizeof(vlan))
		return EINVAL;
	error = copyin(ireq->i_data, &vlan, sizeof(vlan));
	if (error != 0)
		return error;
	if (!IEEE80211_ADDR_EQ(vlan.sv_macaddr, zerobssid)) {
		ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap,
		    vlan.sv_macaddr);
		if (ni == NULL)
			return ENOENT;
	} else
		ni = ieee80211_ref_node(vap->iv_bss);
	ni->ni_vlan = vlan.sv_vlan;
	ieee80211_free_node(ni);
	return error;
}

static int
isvap11g(const struct ieee80211vap *vap)
{
	const struct ieee80211_node *bss = vap->iv_bss;
	return bss->ni_chan != IEEE80211_CHAN_ANYC &&
	    IEEE80211_IS_CHAN_ANYG(bss->ni_chan);
}

static int
isvapht(const struct ieee80211vap *vap)
{
	const struct ieee80211_node *bss = vap->iv_bss;
	return bss->ni_chan != IEEE80211_CHAN_ANYC &&
	    IEEE80211_IS_CHAN_HT(bss->ni_chan);
}

/*
 * Dummy ioctl set handler so the linker set is defined.
 */
static int
dummy_ioctl_set(struct ieee80211vap *vap, struct ieee80211req *ireq)
{
	return ENOSYS;
}
IEEE80211_IOCTL_SET(dummy, dummy_ioctl_set);

static int
ieee80211_ioctl_setdefault(struct ieee80211vap *vap, struct ieee80211req *ireq)
{
	ieee80211_ioctl_setfunc * const *set;
	int error;

	SET_FOREACH(set, ieee80211_ioctl_setset) {
		error = (*set)(vap, ireq);
		if (error != ENOSYS)
			return error;
	}
	return EINVAL;
}

static int
ieee80211_ioctl_set80211(struct ieee80211vap *vap, u_long cmd, struct ieee80211req *ireq)
{
	struct ieee80211com *ic = vap->iv_ic;
	int error;
	const struct ieee80211_authenticator *auth;
	uint8_t tmpkey[IEEE80211_KEYBUF_SIZE];
	char tmpssid[IEEE80211_NWID_LEN];
	uint8_t tmpbssid[IEEE80211_ADDR_LEN];
	struct ieee80211_key *k;
	u_int kid;
	uint32_t flags;

	error = 0;
	switch (ireq->i_type) {
	case IEEE80211_IOC_SSID:
		if (ireq->i_val != 0 ||
		    ireq->i_len > IEEE80211_NWID_LEN)
			return EINVAL;
		error = copyin(ireq->i_data, tmpssid, ireq->i_len);
		if (error)
			break;
		memset(vap->iv_des_ssid[0].ssid, 0, IEEE80211_NWID_LEN);
		vap->iv_des_ssid[0].len = ireq->i_len;
		memcpy(vap->iv_des_ssid[0].ssid, tmpssid, ireq->i_len);
		vap->iv_des_nssid = (ireq->i_len > 0);
		error = ENETRESET;
		break;
	case IEEE80211_IOC_WEP:
		switch (ireq->i_val) {
		case IEEE80211_WEP_OFF:
			vap->iv_flags &= ~IEEE80211_F_PRIVACY;
			vap->iv_flags &= ~IEEE80211_F_DROPUNENC;
			break;
		case IEEE80211_WEP_ON:
			vap->iv_flags |= IEEE80211_F_PRIVACY;
			vap->iv_flags |= IEEE80211_F_DROPUNENC;
			break;
		case IEEE80211_WEP_MIXED:
			vap->iv_flags |= IEEE80211_F_PRIVACY;
			vap->iv_flags &= ~IEEE80211_F_DROPUNENC;
			break;
		}
		error = ENETRESET;
		break;
	case IEEE80211_IOC_WEPKEY:
		kid = (u_int) ireq->i_val;
		if (kid >= IEEE80211_WEP_NKID)
			return EINVAL;
		k = &vap->iv_nw_keys[kid];
		if (ireq->i_len == 0) {
			/* zero-len =>'s delete any existing key */
			(void) ieee80211_crypto_delkey(vap, k);
			break;
		}
		if (ireq->i_len > sizeof(tmpkey))
			return EINVAL;
		memset(tmpkey, 0, sizeof(tmpkey));
		error = copyin(ireq->i_data, tmpkey, ireq->i_len);
		if (error)
			break;
		ieee80211_key_update_begin(vap);
		k->wk_keyix = kid;	/* NB: force fixed key id */
		if (ieee80211_crypto_newkey(vap, IEEE80211_CIPHER_WEP,
		    IEEE80211_KEY_XMIT | IEEE80211_KEY_RECV, k)) {
			k->wk_keylen = ireq->i_len;
			memcpy(k->wk_key, tmpkey, sizeof(tmpkey));
			IEEE80211_ADDR_COPY(k->wk_macaddr, vap->iv_myaddr);
			if  (!ieee80211_crypto_setkey(vap, k))
				error = EINVAL;
		} else
			error = EINVAL;
		ieee80211_key_update_end(vap);
		break;
	case IEEE80211_IOC_WEPTXKEY:
		kid = (u_int) ireq->i_val;
		if (kid >= IEEE80211_WEP_NKID &&
		    (uint16_t) kid != IEEE80211_KEYIX_NONE)
			return EINVAL;
		/*
		 * Firmware devices may need to be told about an explicit
		 * key index here, versus just inferring it from the
		 * key set / change.  Since we may also need to pause
		 * things like transmit before the key is updated,
		 * give the driver a chance to flush things by tying
		 * into key update begin/end.
		 */
		ieee80211_key_update_begin(vap);
		ieee80211_crypto_set_deftxkey(vap, kid);
		ieee80211_key_update_end(vap);
		break;
	case IEEE80211_IOC_AUTHMODE:
		switch (ireq->i_val) {
		case IEEE80211_AUTH_WPA:
		case IEEE80211_AUTH_8021X:	/* 802.1x */
		case IEEE80211_AUTH_OPEN:	/* open */
		case IEEE80211_AUTH_SHARED:	/* shared-key */
		case IEEE80211_AUTH_AUTO:	/* auto */
			auth = ieee80211_authenticator_get(ireq->i_val);
			if (auth == NULL)
				return EINVAL;
			break;
		default:
			return EINVAL;
		}
		switch (ireq->i_val) {
		case IEEE80211_AUTH_WPA:	/* WPA w/ 802.1x */
			vap->iv_flags |= IEEE80211_F_PRIVACY;
			ireq->i_val = IEEE80211_AUTH_8021X;
			break;
		case IEEE80211_AUTH_OPEN:	/* open */
			vap->iv_flags &= ~(IEEE80211_F_WPA|IEEE80211_F_PRIVACY);
			break;
		case IEEE80211_AUTH_SHARED:	/* shared-key */
		case IEEE80211_AUTH_8021X:	/* 802.1x */
			vap->iv_flags &= ~IEEE80211_F_WPA;
			/* both require a key so mark the PRIVACY capability */
			vap->iv_flags |= IEEE80211_F_PRIVACY;
			break;
		case IEEE80211_AUTH_AUTO:	/* auto */
			vap->iv_flags &= ~IEEE80211_F_WPA;
			/* XXX PRIVACY handling? */
			/* XXX what's the right way to do this? */
			break;
		}
		/* NB: authenticator attach/detach happens on state change */
		vap->iv_bss->ni_authmode = ireq->i_val;
		/* XXX mixed/mode/usage? */
		vap->iv_auth = auth;
		error = ENETRESET;
		break;
	case IEEE80211_IOC_CHANNEL:
		error = ieee80211_ioctl_setchannel(vap, ireq);
		break;
	case IEEE80211_IOC_POWERSAVE:
		switch (ireq->i_val) {
		case IEEE80211_POWERSAVE_OFF:
			if (vap->iv_flags & IEEE80211_F_PMGTON) {
				ieee80211_syncflag(vap, -IEEE80211_F_PMGTON);
				error = ERESTART;
			}
			break;
		case IEEE80211_POWERSAVE_ON:
			if ((vap->iv_caps & IEEE80211_C_PMGT) == 0)
				error = EOPNOTSUPP;
			else if ((vap->iv_flags & IEEE80211_F_PMGTON) == 0) {
				ieee80211_syncflag(vap, IEEE80211_F_PMGTON);
				error = ERESTART;
			}
			break;
		default:
			error = EINVAL;
			break;
		}
		break;
	case IEEE80211_IOC_POWERSAVESLEEP:
		if (ireq->i_val < 0)
			return EINVAL;
		ic->ic_lintval = ireq->i_val;
		error = ERESTART;
		break;
	case IEEE80211_IOC_RTSTHRESHOLD:
		if (!(IEEE80211_RTS_MIN <= ireq->i_val &&
		      ireq->i_val <= IEEE80211_RTS_MAX))
			return EINVAL;
		vap->iv_rtsthreshold = ireq->i_val;
		error = ERESTART;
		break;
	case IEEE80211_IOC_PROTMODE:
		if (ireq->i_val > IEEE80211_PROT_RTSCTS)
			return EINVAL;
		vap->iv_protmode = (enum ieee80211_protmode)ireq->i_val;
		/* NB: if not operating in 11g this can wait */
		if (ic->ic_bsschan != IEEE80211_CHAN_ANYC &&
		    IEEE80211_IS_CHAN_ANYG(ic->ic_bsschan))
			error = ERESTART;
		/* driver callback for protection mode update */
		ieee80211_vap_update_erp_protmode(vap);
		break;
	case IEEE80211_IOC_TXPOWER:
		if ((ic->ic_caps & IEEE80211_C_TXPMGT) == 0)
			return EOPNOTSUPP;
		if (!(IEEE80211_TXPOWER_MIN <= ireq->i_val &&
		      ireq->i_val <= IEEE80211_TXPOWER_MAX))
			return EINVAL;
		ic->ic_txpowlimit = ireq->i_val;
		error = ERESTART;
		break;
	case IEEE80211_IOC_ROAMING:
		if (!(IEEE80211_ROAMING_DEVICE <= ireq->i_val &&
		    ireq->i_val <= IEEE80211_ROAMING_MANUAL))
			return EINVAL;
		vap->iv_roaming = (enum ieee80211_roamingmode)ireq->i_val;
		/* XXXX reset? */
		break;
	case IEEE80211_IOC_PRIVACY:
		if (ireq->i_val) {
			/* XXX check for key state? */
			vap->iv_flags |= IEEE80211_F_PRIVACY;
		} else
			vap->iv_flags &= ~IEEE80211_F_PRIVACY;
		/* XXX ERESTART? */
		break;
	case IEEE80211_IOC_DROPUNENCRYPTED:
		if (ireq->i_val)
			vap->iv_flags |= IEEE80211_F_DROPUNENC;
		else
			vap->iv_flags &= ~IEEE80211_F_DROPUNENC;
		/* XXX ERESTART? */
		break;
	case IEEE80211_IOC_WPAKEY:
		error = ieee80211_ioctl_setkey(vap, ireq);
		break;
	case IEEE80211_IOC_DELKEY:
		error = ieee80211_ioctl_delkey(vap, ireq);
		break;
	case IEEE80211_IOC_MLME:
		error = ieee80211_ioctl_setmlme(vap, ireq);
		break;
	case IEEE80211_IOC_COUNTERMEASURES:
		if (ireq->i_val) {
			if ((vap->iv_flags & IEEE80211_F_WPA) == 0)
				return EOPNOTSUPP;
			vap->iv_flags |= IEEE80211_F_COUNTERM;
		} else
			vap->iv_flags &= ~IEEE80211_F_COUNTERM;
		/* XXX ERESTART? */
		break;
	case IEEE80211_IOC_WPA:
		if (ireq->i_val > 3)
			return EINVAL;
		/* XXX verify ciphers available */
		flags = vap->iv_flags & ~IEEE80211_F_WPA;
		switch (ireq->i_val) {
		case 0:
			/* wpa_supplicant calls this to clear the WPA config */
			break;
		case 1:
			if (!(vap->iv_caps & IEEE80211_C_WPA1))
				return EOPNOTSUPP;
			flags |= IEEE80211_F_WPA1;
			break;
		case 2:
			if (!(vap->iv_caps & IEEE80211_C_WPA2))
				return EOPNOTSUPP;
			flags |= IEEE80211_F_WPA2;
			break;
		case 3:
			if ((vap->iv_caps & IEEE80211_C_WPA) != IEEE80211_C_WPA)
				return EOPNOTSUPP;
			flags |= IEEE80211_F_WPA1 | IEEE80211_F_WPA2;
			break;
		default:	/*  Can't set any -> error */
			return EOPNOTSUPP;
		}
		vap->iv_flags = flags;
		error = ERESTART;	/* NB: can change beacon frame */
		break;
	case IEEE80211_IOC_WME:
		if (ireq->i_val) {
			if ((vap->iv_caps & IEEE80211_C_WME) == 0)
				return EOPNOTSUPP;
			ieee80211_syncflag(vap, IEEE80211_F_WME);
		} else
			ieee80211_syncflag(vap, -IEEE80211_F_WME);
		error = ERESTART;	/* NB: can change beacon frame */
		break;
	case IEEE80211_IOC_HIDESSID:
		if (ireq->i_val)
			vap->iv_flags |= IEEE80211_F_HIDESSID;
		else
			vap->iv_flags &= ~IEEE80211_F_HIDESSID;
		error = ERESTART;		/* XXX ENETRESET? */
		break;
	case IEEE80211_IOC_APBRIDGE:
		if (ireq->i_val == 0)
			vap->iv_flags |= IEEE80211_F_NOBRIDGE;
		else
			vap->iv_flags &= ~IEEE80211_F_NOBRIDGE;
		break;
	case IEEE80211_IOC_BSSID:
		if (ireq->i_len != sizeof(tmpbssid))
			return EINVAL;
		error = copyin(ireq->i_data, tmpbssid, ireq->i_len);
		if (error)
			break;
		IEEE80211_ADDR_COPY(vap->iv_des_bssid, tmpbssid);
		if (IEEE80211_ADDR_EQ(vap->iv_des_bssid, zerobssid))
			vap->iv_flags &= ~IEEE80211_F_DESBSSID;
		else
			vap->iv_flags |= IEEE80211_F_DESBSSID;
		error = ENETRESET;
		break;
	case IEEE80211_IOC_CHANLIST:
		error = ieee80211_ioctl_setchanlist(vap, ireq);
		break;
#define	OLD_IEEE80211_IOC_SCAN_REQ	23
#ifdef OLD_IEEE80211_IOC_SCAN_REQ
	case OLD_IEEE80211_IOC_SCAN_REQ:
		IEEE80211_DPRINTF(vap, IEEE80211_MSG_SCAN,
			"%s: active scan request\n", __func__);
		/*
		 * If we are in INIT state then the driver has never
		 * had a chance to setup hardware state to do a scan;
		 * use the state machine to get us up the SCAN state.
		 * Otherwise just invoke the scan machinery to start
		 * a one-time scan.
		 */
		if (vap->iv_state == IEEE80211_S_INIT)
			ieee80211_new_state(vap, IEEE80211_S_SCAN, 0);
		else
			(void) ieee80211_start_scan(vap,
				IEEE80211_SCAN_ACTIVE |
				IEEE80211_SCAN_NOPICK |
				IEEE80211_SCAN_ONCE,
				IEEE80211_SCAN_FOREVER, 0, 0,
				/* XXX use ioctl params */
				vap->iv_des_nssid, vap->iv_des_ssid);
		break;
#endif /* OLD_IEEE80211_IOC_SCAN_REQ */
	case IEEE80211_IOC_SCAN_REQ:
		error = ieee80211_ioctl_scanreq(vap, ireq);
		break;
	case IEEE80211_IOC_SCAN_CANCEL:
		IEEE80211_DPRINTF(vap, IEEE80211_MSG_SCAN,
		    "%s: cancel scan\n", __func__);
		ieee80211_cancel_scan(vap);
		break;
	case IEEE80211_IOC_HTCONF:
		if (ireq->i_val & 1)
			ieee80211_syncflag_ht(vap, IEEE80211_FHT_HT);
		else
			ieee80211_syncflag_ht(vap, -IEEE80211_FHT_HT);
		if (ireq->i_val & 2)
			ieee80211_syncflag_ht(vap, IEEE80211_FHT_USEHT40);
		else
			ieee80211_syncflag_ht(vap, -IEEE80211_FHT_USEHT40);
		error = ENETRESET;
		break;
	case IEEE80211_IOC_ADDMAC:
	case IEEE80211_IOC_DELMAC:
		error = ieee80211_ioctl_macmac(vap, ireq);
		break;
	case IEEE80211_IOC_MACCMD:
		error = ieee80211_ioctl_setmaccmd(vap, ireq);
		break;
	case IEEE80211_IOC_STA_STATS:
		error = ieee80211_ioctl_setstastats(vap, ireq);
		break;
	case IEEE80211_IOC_STA_TXPOW:
		error = ieee80211_ioctl_setstatxpow(vap, ireq);
		break;
	case IEEE80211_IOC_WME_CWMIN:		/* WME: CWmin */
	case IEEE80211_IOC_WME_CWMAX:		/* WME: CWmax */
	case IEEE80211_IOC_WME_AIFS:		/* WME: AIFS */
	case IEEE80211_IOC_WME_TXOPLIMIT:	/* WME: txops limit */
	case IEEE80211_IOC_WME_ACM:		/* WME: ACM (bss only) */
	case IEEE80211_IOC_WME_ACKPOLICY:	/* WME: ACK policy (!bss only) */
		error = ieee80211_ioctl_setwmeparam(vap, ireq);
		break;
	case IEEE80211_IOC_DTIM_PERIOD:
		if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
		    vap->iv_opmode != IEEE80211_M_MBSS &&
		    vap->iv_opmode != IEEE80211_M_IBSS)
			return EINVAL;
		if (IEEE80211_DTIM_MIN <= ireq->i_val &&
		    ireq->i_val <= IEEE80211_DTIM_MAX) {
			vap->iv_dtim_period = ireq->i_val;
			error = ENETRESET;		/* requires restart */
		} else
			error = EINVAL;
		break;
	case IEEE80211_IOC_BEACON_INTERVAL:
		if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
		    vap->iv_opmode != IEEE80211_M_MBSS &&
		    vap->iv_opmode != IEEE80211_M_IBSS)
			return EINVAL;
		if (IEEE80211_BINTVAL_MIN <= ireq->i_val &&
		    ireq->i_val <= IEEE80211_BINTVAL_MAX) {
			ic->ic_bintval = ireq->i_val;
			error = ENETRESET;		/* requires restart */
		} else
			error = EINVAL;
		break;
	case IEEE80211_IOC_PUREG:
		if (ireq->i_val)
			vap->iv_flags |= IEEE80211_F_PUREG;
		else
			vap->iv_flags &= ~IEEE80211_F_PUREG;
		/* NB: reset only if we're operating on an 11g channel */
		if (isvap11g(vap))
			error = ENETRESET;
		break;
	case IEEE80211_IOC_QUIET:
		vap->iv_quiet= ireq->i_val;
		break;
	case IEEE80211_IOC_QUIET_COUNT:
		vap->iv_quiet_count=ireq->i_val;
		break;
	case IEEE80211_IOC_QUIET_PERIOD:
		vap->iv_quiet_period=ireq->i_val;
		break;
	case IEEE80211_IOC_QUIET_OFFSET:
		vap->iv_quiet_offset=ireq->i_val;
		break;
	case IEEE80211_IOC_QUIET_DUR:
		if(ireq->i_val < vap->iv_bss->ni_intval)
			vap->iv_quiet_duration = ireq->i_val;
		else
			error = EINVAL;
		break;
	case IEEE80211_IOC_BGSCAN:
		if (ireq->i_val) {
			if ((vap->iv_caps & IEEE80211_C_BGSCAN) == 0)
				return EOPNOTSUPP;
			vap->iv_flags |= IEEE80211_F_BGSCAN;
		} else
			vap->iv_flags &= ~IEEE80211_F_BGSCAN;
		break;
	case IEEE80211_IOC_BGSCAN_IDLE:
		if (ireq->i_val >= IEEE80211_BGSCAN_IDLE_MIN)
			vap->iv_bgscanidle = ireq->i_val*hz/1000;
		else
			error = EINVAL;
		break;
	case IEEE80211_IOC_BGSCAN_INTERVAL:
		if (ireq->i_val >= IEEE80211_BGSCAN_INTVAL_MIN)
			vap->iv_bgscanintvl = ireq->i_val*hz;
		else
			error = EINVAL;
		break;
	case IEEE80211_IOC_SCANVALID:
		if (ireq->i_val >= IEEE80211_SCAN_VALID_MIN)
			vap->iv_scanvalid = ireq->i_val*hz;
		else
			error = EINVAL;
		break;
	case IEEE80211_IOC_FRAGTHRESHOLD:
		if ((vap->iv_caps & IEEE80211_C_TXFRAG) == 0 &&
		    ireq->i_val != IEEE80211_FRAG_MAX)
			return EOPNOTSUPP;
		if (!(IEEE80211_FRAG_MIN <= ireq->i_val &&
		      ireq->i_val <= IEEE80211_FRAG_MAX))
			return EINVAL;
		vap->iv_fragthreshold = ireq->i_val;
		error = ERESTART;
		break;
	case IEEE80211_IOC_BURST:
		if (ireq->i_val) {
			if ((vap->iv_caps & IEEE80211_C_BURST) == 0)
				return EOPNOTSUPP;
			ieee80211_syncflag(vap, IEEE80211_F_BURST);
		} else
			ieee80211_syncflag(vap, -IEEE80211_F_BURST);
		error = ERESTART;
		break;
	case IEEE80211_IOC_BMISSTHRESHOLD:
		if (!(IEEE80211_HWBMISS_MIN <= ireq->i_val &&
		      ireq->i_val <= IEEE80211_HWBMISS_MAX))
			return EINVAL;
		vap->iv_bmissthreshold = ireq->i_val;
		error = ERESTART;
		break;
	case IEEE80211_IOC_CURCHAN:
		error = ieee80211_ioctl_setcurchan(vap, ireq);
		break;
	case IEEE80211_IOC_SHORTGI:
		if (ireq->i_val) {
#define	IEEE80211_HTCAP_SHORTGI \
	(IEEE80211_HTCAP_SHORTGI20 | IEEE80211_HTCAP_SHORTGI40)
			if (((ireq->i_val ^ vap->iv_htcaps) & IEEE80211_HTCAP_SHORTGI) != 0)
				return EINVAL;
			if (ireq->i_val & IEEE80211_HTCAP_SHORTGI20)
				vap->iv_flags_ht |= IEEE80211_FHT_SHORTGI20;
			if (ireq->i_val & IEEE80211_HTCAP_SHORTGI40)
				vap->iv_flags_ht |= IEEE80211_FHT_SHORTGI40;
#undef IEEE80211_HTCAP_SHORTGI
		} else
			vap->iv_flags_ht &=
			    ~(IEEE80211_FHT_SHORTGI20 | IEEE80211_FHT_SHORTGI40);
		error = ERESTART;
		break;
	case IEEE80211_IOC_AMPDU:
		if (ireq->i_val && (vap->iv_htcaps & IEEE80211_HTC_AMPDU) == 0)
			return EINVAL;
		if (ireq->i_val & 1)
			vap->iv_flags_ht |= IEEE80211_FHT_AMPDU_TX;
		else
			vap->iv_flags_ht &= ~IEEE80211_FHT_AMPDU_TX;
		if (ireq->i_val & 2)
			vap->iv_flags_ht |= IEEE80211_FHT_AMPDU_RX;
		else
			vap->iv_flags_ht &= ~IEEE80211_FHT_AMPDU_RX;
		/* NB: reset only if we're operating on an 11n channel */
		if (isvapht(vap))
			error = ERESTART;
		break;
	case IEEE80211_IOC_AMPDU_LIMIT:
		/* XXX TODO: figure out ampdu_limit versus ampdu_rxmax */
		if (!(IEEE80211_HTCAP_MAXRXAMPDU_8K <= ireq->i_val &&
		      ireq->i_val <= IEEE80211_HTCAP_MAXRXAMPDU_64K))
			return EINVAL;
		if (vap->iv_opmode == IEEE80211_M_HOSTAP)
			vap->iv_ampdu_rxmax = ireq->i_val;
		else
			vap->iv_ampdu_limit = ireq->i_val;
		error = ERESTART;
		break;
	case IEEE80211_IOC_AMPDU_DENSITY:
		if (!(IEEE80211_HTCAP_MPDUDENSITY_NA <= ireq->i_val &&
		      ireq->i_val <= IEEE80211_HTCAP_MPDUDENSITY_16))
			return EINVAL;
		vap->iv_ampdu_density = ireq->i_val;
		error = ERESTART;
		break;
	case IEEE80211_IOC_AMSDU:
		if (ireq->i_val && (vap->iv_htcaps & IEEE80211_HTC_AMSDU) == 0)
			return EINVAL;
		if (ireq->i_val & 1)
			vap->iv_flags_ht |= IEEE80211_FHT_AMSDU_TX;
		else
			vap->iv_flags_ht &= ~IEEE80211_FHT_AMSDU_TX;
		if (ireq->i_val & 2)
			vap->iv_flags_ht |= IEEE80211_FHT_AMSDU_RX;
		else
			vap->iv_flags_ht &= ~IEEE80211_FHT_AMSDU_RX;
		/* NB: reset only if we're operating on an 11n channel */
		if (isvapht(vap))
			error = ERESTART;
		break;
	case IEEE80211_IOC_AMSDU_LIMIT:
		/* XXX validate */
		vap->iv_amsdu_limit = ireq->i_val;	/* XXX truncation? */
		break;
	case IEEE80211_IOC_PUREN:
		if (ireq->i_val) {
			if ((vap->iv_flags_ht & IEEE80211_FHT_HT) == 0)
				return EINVAL;
			vap->iv_flags_ht |= IEEE80211_FHT_PUREN;
		} else
			vap->iv_flags_ht &= ~IEEE80211_FHT_PUREN;
		/* NB: reset only if we're operating on an 11n channel */
		if (isvapht(vap))
			error = ERESTART;
		break;
	case IEEE80211_IOC_DOTH:
		if (ireq->i_val) {
#if 0
			/* XXX no capability */
			if ((vap->iv_caps & IEEE80211_C_DOTH) == 0)
				return EOPNOTSUPP;
#endif
			vap->iv_flags |= IEEE80211_F_DOTH;
		} else
			vap->iv_flags &= ~IEEE80211_F_DOTH;
		error = ENETRESET;
		break;
	case IEEE80211_IOC_REGDOMAIN:
		error = ieee80211_ioctl_setregdomain(vap, ireq);
		break;
	case IEEE80211_IOC_ROAM:
		error = ieee80211_ioctl_setroam(vap, ireq);
		break;
	case IEEE80211_IOC_TXPARAMS:
		error = ieee80211_ioctl_settxparams(vap, ireq);
		break;
	case IEEE80211_IOC_HTCOMPAT:
		if (ireq->i_val) {
			if ((vap->iv_flags_ht & IEEE80211_FHT_HT) == 0)
				return EOPNOTSUPP;
			vap->iv_flags_ht |= IEEE80211_FHT_HTCOMPAT;
		} else
			vap->iv_flags_ht &= ~IEEE80211_FHT_HTCOMPAT;
		/* NB: reset only if we're operating on an 11n channel */
		if (isvapht(vap))
			error = ERESTART;
		break;
	case IEEE80211_IOC_DWDS:
		if (ireq->i_val) {
			/* NB: DWDS only makes sense for WDS-capable devices */
			if ((ic->ic_caps & IEEE80211_C_WDS) == 0)
				return EOPNOTSUPP;
			/* NB: DWDS is used only with ap+sta vaps */
			if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
			    vap->iv_opmode != IEEE80211_M_STA)
				return EINVAL;
			vap->iv_flags |= IEEE80211_F_DWDS;
			if (vap->iv_opmode == IEEE80211_M_STA)
				vap->iv_flags_ext |= IEEE80211_FEXT_4ADDR;
		} else {
			vap->iv_flags &= ~IEEE80211_F_DWDS;
			if (vap->iv_opmode == IEEE80211_M_STA)
				vap->iv_flags_ext &= ~IEEE80211_FEXT_4ADDR;
		}
		break;
	case IEEE80211_IOC_INACTIVITY:
		if (ireq->i_val)
			vap->iv_flags_ext |= IEEE80211_FEXT_INACT;
		else
			vap->iv_flags_ext &= ~IEEE80211_FEXT_INACT;
		break;
	case IEEE80211_IOC_APPIE:
		error = ieee80211_ioctl_setappie(vap, ireq);
		break;
	case IEEE80211_IOC_WPS:
		if (ireq->i_val) {
			if ((vap->iv_caps & IEEE80211_C_WPA) == 0)
				return EOPNOTSUPP;
			vap->iv_flags_ext |= IEEE80211_FEXT_WPS;
		} else
			vap->iv_flags_ext &= ~IEEE80211_FEXT_WPS;
		break;
	case IEEE80211_IOC_TSN:
		if (ireq->i_val) {
			if ((vap->iv_caps & IEEE80211_C_WPA) == 0)
				return EOPNOTSUPP;
			vap->iv_flags_ext |= IEEE80211_FEXT_TSN;
		} else
			vap->iv_flags_ext &= ~IEEE80211_FEXT_TSN;
		break;
	case IEEE80211_IOC_CHANSWITCH:
		error = ieee80211_ioctl_chanswitch(vap, ireq);
		break;
	case IEEE80211_IOC_DFS:
		if (ireq->i_val) {
			if ((vap->iv_caps & IEEE80211_C_DFS) == 0)
				return EOPNOTSUPP;
			/* NB: DFS requires 11h support */
			if ((vap->iv_flags & IEEE80211_F_DOTH) == 0)
				return EINVAL;
			vap->iv_flags_ext |= IEEE80211_FEXT_DFS;
		} else
			vap->iv_flags_ext &= ~IEEE80211_FEXT_DFS;
		break;
	case IEEE80211_IOC_DOTD:
		if (ireq->i_val)
			vap->iv_flags_ext |= IEEE80211_FEXT_DOTD;
		else
			vap->iv_flags_ext &= ~IEEE80211_FEXT_DOTD;
		if (vap->iv_opmode == IEEE80211_M_STA)
			error = ENETRESET;
		break;
	case IEEE80211_IOC_HTPROTMODE:
		if (ireq->i_val > IEEE80211_PROT_RTSCTS)
			return EINVAL;
		vap->iv_htprotmode = ireq->i_val ?
		    IEEE80211_PROT_RTSCTS : IEEE80211_PROT_NONE;
		/* NB: if not operating in 11n this can wait */
		if (isvapht(vap))
			error = ERESTART;
		/* Notify driver layer of HT protmode changes */
		ieee80211_vap_update_ht_protmode(vap);
		break;
	case IEEE80211_IOC_STA_VLAN:
		error = ieee80211_ioctl_setstavlan(vap, ireq);
		break;
	case IEEE80211_IOC_SMPS:
		if ((ireq->i_val &~ IEEE80211_HTCAP_SMPS) != 0 ||
		    ireq->i_val == 0x0008)	/* value of 2 is reserved */
			return EINVAL;
		if (ireq->i_val != IEEE80211_HTCAP_SMPS_OFF &&
		    (vap->iv_htcaps & IEEE80211_HTC_SMPS) == 0)
			return EOPNOTSUPP;
		vap->iv_htcaps = (vap->iv_htcaps &~ IEEE80211_HTCAP_SMPS) |
			ireq->i_val;
		/* NB: if not operating in 11n this can wait */
		if (isvapht(vap))
			error = ERESTART;
		break;
	case IEEE80211_IOC_RIFS:
		if (ireq->i_val != 0) {
			if ((vap->iv_htcaps & IEEE80211_HTC_RIFS) == 0)
				return EOPNOTSUPP;
			vap->iv_flags_ht |= IEEE80211_FHT_RIFS;
		} else
			vap->iv_flags_ht &= ~IEEE80211_FHT_RIFS;
		/* NB: if not operating in 11n this can wait */
		if (isvapht(vap))
			error = ERESTART;
		break;
	case IEEE80211_IOC_STBC:
		/* Check if we can do STBC TX/RX before changing the setting */
		if ((ireq->i_val & 1) &&
		    ((vap->iv_htcaps & IEEE80211_HTCAP_TXSTBC) == 0))
			return EOPNOTSUPP;
		if ((ireq->i_val & 2) &&
		    ((vap->iv_htcaps & IEEE80211_HTCAP_RXSTBC) == 0))
			return EOPNOTSUPP;

		/* TX */
		if (ireq->i_val & 1)
			vap->iv_flags_ht |= IEEE80211_FHT_STBC_TX;
		else
			vap->iv_flags_ht &= ~IEEE80211_FHT_STBC_TX;

		/* RX */
		if (ireq->i_val & 2)
			vap->iv_flags_ht |= IEEE80211_FHT_STBC_RX;
		else
			vap->iv_flags_ht &= ~IEEE80211_FHT_STBC_RX;

		/* NB: reset only if we're operating on an 11n channel */
		if (isvapht(vap))
			error = ERESTART;
		break;
	case IEEE80211_IOC_LDPC:
		/* Check if we can do LDPC TX/RX before changing the setting */
		if ((ireq->i_val & 1) &&
		    (vap->iv_htcaps & IEEE80211_HTC_TXLDPC) == 0)
			return EOPNOTSUPP;
		if ((ireq->i_val & 2) &&
		    (vap->iv_htcaps & IEEE80211_HTCAP_LDPC) == 0)
			return EOPNOTSUPP;

		/* TX */
		if (ireq->i_val & 1)
			vap->iv_flags_ht |= IEEE80211_FHT_LDPC_TX;
		else
			vap->iv_flags_ht &= ~IEEE80211_FHT_LDPC_TX;

		/* RX */
		if (ireq->i_val & 2)
			vap->iv_flags_ht |= IEEE80211_FHT_LDPC_RX;
		else
			vap->iv_flags_ht &= ~IEEE80211_FHT_LDPC_RX;

		/* NB: reset only if we're operating on an 11n channel */
		if (isvapht(vap))
			error = ERESTART;
		break;
	case IEEE80211_IOC_UAPSD:
		if ((vap->iv_caps & IEEE80211_C_UAPSD) == 0)
			return EOPNOTSUPP;
		if (ireq->i_val == 0)
			vap->iv_flags_ext &= ~IEEE80211_FEXT_UAPSD;
		else if (ireq->i_val == 1)
			vap->iv_flags_ext |= IEEE80211_FEXT_UAPSD;
		else
			return EINVAL;
		break;

	/* VHT */
	case IEEE80211_IOC_VHTCONF:
		if (ireq->i_val & IEEE80211_FVHT_VHT)
			ieee80211_syncflag_vht(vap, IEEE80211_FVHT_VHT);
		else
			ieee80211_syncflag_vht(vap, -IEEE80211_FVHT_VHT);

		if (ireq->i_val & IEEE80211_FVHT_USEVHT40)
			ieee80211_syncflag_vht(vap, IEEE80211_FVHT_USEVHT40);
		else
			ieee80211_syncflag_vht(vap, -IEEE80211_FVHT_USEVHT40);

		if (ireq->i_val & IEEE80211_FVHT_USEVHT80)
			ieee80211_syncflag_vht(vap, IEEE80211_FVHT_USEVHT80);
		else
			ieee80211_syncflag_vht(vap, -IEEE80211_FVHT_USEVHT80);

		if (ireq->i_val & IEEE80211_FVHT_USEVHT160)
			ieee80211_syncflag_vht(vap, IEEE80211_FVHT_USEVHT160);
		else
			ieee80211_syncflag_vht(vap, -IEEE80211_FVHT_USEVHT160);

		if (ireq->i_val & IEEE80211_FVHT_USEVHT80P80)
			ieee80211_syncflag_vht(vap, IEEE80211_FVHT_USEVHT80P80);
		else
			ieee80211_syncflag_vht(vap, -IEEE80211_FVHT_USEVHT80P80);

		error = ENETRESET;
		break;

	default:
		error = ieee80211_ioctl_setdefault(vap, ireq);
		break;
	}
	/*
	 * The convention is that ENETRESET means an operation
	 * requires a complete re-initialization of the device (e.g.
	 * changing something that affects the association state).
	 * ERESTART means the request may be handled with only a
	 * reload of the hardware state.  We hand ERESTART requests
	 * to the iv_reset callback so the driver can decide.  If
	 * a device does not fillin iv_reset then it defaults to one
	 * that returns ENETRESET.  Otherwise a driver may return
	 * ENETRESET (in which case a full reset will be done) or
	 * 0 to mean there's no need to do anything (e.g. when the
	 * change has no effect on the driver/device).
	 */
	if (error == ERESTART)
		error = IFNET_IS_UP_RUNNING(vap->iv_ifp) ?
		    vap->iv_reset(vap, ireq->i_type) : 0;
	if (error == ENETRESET) {
		/* XXX need to re-think AUTO handling */
		if (IS_UP_AUTO(vap))
			ieee80211_init(vap);
		error = 0;
	}
	return error;
}

int
ieee80211_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
{
	struct ieee80211vap *vap = ifp->if_softc;
	struct ieee80211com *ic = vap->iv_ic;
	int error = 0, wait = 0, ic_used;
	struct ifreq *ifr;
	struct ifaddr *ifa;			/* XXX */

	ic_used = (cmd != SIOCSIFMTU && cmd != SIOCG80211STATS);
	if (ic_used && (error = ieee80211_com_vincref(vap)) != 0)
		return (error);

	switch (cmd) {
	case SIOCSIFFLAGS:
		IEEE80211_LOCK(ic);
		if ((ifp->if_flags ^ vap->iv_ifflags) & IFF_PROMISC) {
			/*
			 * Enable promiscuous mode when:
			 * 1. Interface is not a member of bridge, or
			 * 2. Requested by user, or
			 * 3. In monitor (or adhoc-demo) mode.
			 */
			if (ifp->if_bridge == NULL ||
			    (ifp->if_flags & IFF_PPROMISC) != 0 ||
			    vap->iv_opmode == IEEE80211_M_MONITOR ||
			    (vap->iv_opmode == IEEE80211_M_AHDEMO &&
			    (vap->iv_caps & IEEE80211_C_TDMA) == 0)) {
				ieee80211_promisc(vap,
				    ifp->if_flags & IFF_PROMISC);
				vap->iv_ifflags ^= IFF_PROMISC;
			}
		}
		if ((ifp->if_flags ^ vap->iv_ifflags) & IFF_ALLMULTI) {
			ieee80211_allmulti(vap, ifp->if_flags & IFF_ALLMULTI);
			vap->iv_ifflags ^= IFF_ALLMULTI;
		}
		if (ifp->if_flags & IFF_UP) {
			/*
			 * Bring ourself up unless we're already operational.
			 * If we're the first vap and the parent is not up
			 * then it will automatically be brought up as a
			 * side-effect of bringing ourself up.
			 */
			if (vap->iv_state == IEEE80211_S_INIT) {
				if (ic->ic_nrunning == 0)
					wait = 1;
				ieee80211_start_locked(vap);
			}
		} else if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
			/*
			 * Stop ourself.  If we are the last vap to be
			 * marked down the parent will also be taken down.
			 */
			if (ic->ic_nrunning == 1)
				wait = 1;
			ieee80211_stop_locked(vap);
		}
		IEEE80211_UNLOCK(ic);
		/* Wait for parent ioctl handler if it was queued */
		if (wait) {
			struct epoch_tracker et;

			ieee80211_waitfor_parent(ic);

			/*
			 * Check if the MAC address was changed
			 * via SIOCSIFLLADDR ioctl.
			 *
			 * NB: device may be detached during initialization;
			 * use if_ioctl for existence check.
			 */
			NET_EPOCH_ENTER(et);
			if (ifp->if_ioctl == ieee80211_ioctl &&
			    (ifp->if_flags & IFF_UP) == 0 &&
			    !IEEE80211_ADDR_EQ(vap->iv_myaddr, IF_LLADDR(ifp)))
				IEEE80211_ADDR_COPY(vap->iv_myaddr,
				    IF_LLADDR(ifp));
			NET_EPOCH_EXIT(et);
		}
		break;
	case SIOCADDMULTI:
	case SIOCDELMULTI:
		ieee80211_runtask(ic, &ic->ic_mcast_task);
		break;
	case SIOCSIFMEDIA:
	case SIOCGIFMEDIA:
		ifr = (struct ifreq *)data;
		error = ifmedia_ioctl(ifp, ifr, &vap->iv_media, cmd);
		break;
	case SIOCG80211:
		error = ieee80211_ioctl_get80211(vap, cmd,
				(struct ieee80211req *) data);
		break;
	case SIOCS80211:
		error = ieee80211_priv_check_vap_manage(cmd, vap, ifp);
		if (error == 0)
			error = ieee80211_ioctl_set80211(vap, cmd,
					(struct ieee80211req *) data);
		break;
	case SIOCG80211STATS:
		ifr = (struct ifreq *)data;
		error = copyout(&vap->iv_stats, ifr_data_get_ptr(ifr),
		    sizeof(vap->iv_stats));
		break;
	case SIOCSIFMTU:
		ifr = (struct ifreq *)data;
		if (!(IEEE80211_MTU_MIN <= ifr->ifr_mtu &&
		    ifr->ifr_mtu <= IEEE80211_MTU_MAX))
			error = EINVAL;
		else
			ifp->if_mtu = ifr->ifr_mtu;
		break;
	case SIOCSIFADDR:
		/*
		 * XXX Handle this directly so we can suppress if_init calls.
		 * XXX This should be done in ether_ioctl but for the moment
		 * XXX there are too many other parts of the system that
		 * XXX set IFF_UP and so suppress if_init being called when
		 * XXX it should be.
		 */
		ifa = (struct ifaddr *) data;
		switch (ifa->ifa_addr->sa_family) {
#ifdef INET
		case AF_INET:
			if ((ifp->if_flags & IFF_UP) == 0) {
				ifp->if_flags |= IFF_UP;
				ifp->if_init(ifp->if_softc);
			}
			arp_ifinit(ifp, ifa);
			break;
#endif
		default:
			if ((ifp->if_flags & IFF_UP) == 0) {
				ifp->if_flags |= IFF_UP;
				ifp->if_init(ifp->if_softc);
			}
			break;
		}
		break;
	case SIOCSIFLLADDR:
		error = ieee80211_priv_check_vap_setmac(cmd, vap, ifp);
		if (error == 0)
			break;
		/* Fallthrough */
	default:
		/*
		 * Pass unknown ioctls first to the driver, and if it
		 * returns ENOTTY, then to the generic Ethernet handler.
		 */
		if (ic->ic_ioctl != NULL &&
		    (error = ic->ic_ioctl(ic, cmd, data)) != ENOTTY)
			break;
		error = ether_ioctl(ifp, cmd, data);
		break;
	}

	if (ic_used)
		ieee80211_com_vdecref(vap);

	return (error);
}
